diff --git a/CHANGELOG.md b/CHANGELOG.md
index 53e059cc21..93e6fdf69a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -46,6 +46,22 @@ styled with Tailwind CSS by default. You can opt-out of Tailwind CSS with the `-
 flag (the Tailwind CSS classes are kept in the generated components as reference for
 future styling).
 
+## 1.7.13 (2024-06-18)
+
+### Bug fixes
+  * Fix Elixir 1.17 warning in Cowboy2Adapter
+  * Fix verified routes emitting diagnostics without file and position
+
+### JavaScript Client Bug Fixes
+  * Fix error when `sessionStorage` is not available on global namespace
+
+### Enhancements
+  * Add `follow_redirect/2` to Phoenix.ConnTest
+  * Use LiveView 1.0.0-rc for newly generated applications
+  * Use new `Phoenix.Component.used_input?` for form errors in generated `core_components.ex`
+  * Allow `mix ecto.setup` from the umbrella root
+  * Bump Endpoint static cache manifest on `config_change` callback
+
 ## 1.7.12 (2024-04-11)
 
 ### JavaScript Client Bug Fixes
diff --git a/assets/package.json b/assets/package.json
index e5000abb7f..84cad522f0 100644
--- a/assets/package.json
+++ b/assets/package.json
@@ -1,6 +1,6 @@
 {
   "name": "phoenix",
-  "version": "1.7.12",
+  "version": "1.7.13",
   "description": "The official JavaScript client for the Phoenix web framework.",
   "license": "MIT",
   "main": "./assets/js/phoenix/index.js",
diff --git a/installer/mix.exs b/installer/mix.exs
index 335ca46291..cb83cae979 100644
--- a/installer/mix.exs
+++ b/installer/mix.exs
@@ -6,7 +6,7 @@ end
 defmodule Phx.New.MixProject do
   use Mix.Project
 
-  @version "1.7.12"
+  @version "1.7.13"
   @scm_url "https://github.com/phoenixframework/phoenix"
 
   # If the elixir requirement is updated, we need to update:
diff --git a/installer/mix.lock b/installer/mix.lock
index b01be9b091..394ffc7366 100644
--- a/installer/mix.lock
+++ b/installer/mix.lock
@@ -1,8 +1,8 @@
 %{
   "earmark": {:hex, :earmark, "1.4.10", "bddce5e8ea37712a5bfb01541be8ba57d3b171d3fa4f80a0be9bcf1db417bcaf", [:mix], [{:earmark_parser, ">= 1.4.10", [hex: :earmark_parser, repo: "hexpm", optional: false]}], "hexpm", "12dbfa80810478e521d3ffb941ad9fbfcbbd7debe94e1341b4c4a1b2411c1c27"},
   "earmark_parser": {:hex, :earmark_parser, "1.4.39", "424642f8335b05bb9eb611aa1564c148a8ee35c9c8a8bba6e129d51a3e3c6769", [:mix], [], "hexpm", "06553a88d1f1846da9ef066b87b57c6f605552cfbe40d20bd8d59cc6bde41944"},
-  "ex_doc": {:hex, :ex_doc, "0.32.2", "f60bbeb6ccbe75d005763e2a328e6f05e0624232f2393bc693611c2d3ae9fa0e", [:mix], [{:earmark_parser, "~> 1.4.39", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_c, ">= 0.1.0", [hex: :makeup_c, repo: "hexpm", optional: true]}, {:makeup_elixir, "~> 0.14 or ~> 1.0", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1 or ~> 1.0", [hex: :makeup_erlang, repo: "hexpm", optional: false]}, {:makeup_html, ">= 0.1.0", [hex: :makeup_html, repo: "hexpm", optional: true]}], "hexpm", "a4480305cdfe7fdfcbb77d1092c76161626d9a7aa4fb698aee745996e34602df"},
-  "makeup": {:hex, :makeup, "1.1.1", "fa0bc768698053b2b3869fa8a62616501ff9d11a562f3ce39580d60860c3a55e", [:mix], [{:nimble_parsec, "~> 1.2.2 or ~> 1.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "5dc62fbdd0de44de194898b6710692490be74baa02d9d108bc29f007783b0b48"},
+  "ex_doc": {:hex, :ex_doc, "0.34.0", "ab95e0775db3df71d30cf8d78728dd9261c355c81382bcd4cefdc74610bef13e", [:mix], [{:earmark_parser, "~> 1.4.39", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_c, ">= 0.1.0", [hex: :makeup_c, repo: "hexpm", optional: true]}, {:makeup_elixir, "~> 0.14 or ~> 1.0", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1 or ~> 1.0", [hex: :makeup_erlang, repo: "hexpm", optional: false]}, {:makeup_html, ">= 0.1.0", [hex: :makeup_html, repo: "hexpm", optional: true]}], "hexpm", "60734fb4c1353f270c3286df4a0d51e65a2c1d9fba66af3940847cc65a8066d7"},
+  "makeup": {:hex, :makeup, "1.1.2", "9ba8837913bdf757787e71c1581c21f9d2455f4dd04cfca785c70bbfff1a76a3", [:mix], [{:nimble_parsec, "~> 1.2.2 or ~> 1.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "cce1566b81fbcbd21eca8ffe808f33b221f9eee2cbc7a1706fc3da9ff18e6cac"},
   "makeup_elixir": {:hex, :makeup_elixir, "0.16.2", "627e84b8e8bf22e60a2579dad15067c755531fea049ae26ef1020cad58fe9578", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}, {:nimble_parsec, "~> 1.2.3 or ~> 1.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "41193978704763f6bbe6cc2758b84909e62984c7752b3784bd3c218bb341706b"},
   "makeup_erlang": {:hex, :makeup_erlang, "1.0.0", "6f0eff9c9c489f26b69b61440bf1b238d95badae49adac77973cbacae87e3c2e", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "ea7a9307de9d1548d2a72d299058d1fd2339e3d398560a0e46c27dab4891e4d2"},
   "nimble_parsec": {:hex, :nimble_parsec, "1.4.0", "51f9b613ea62cfa97b25ccc2c1b4216e81df970acd8e16e8d1bdc58fef21370d", [:mix], [], "hexpm", "9c565862810fb383e9838c1dd2d7d2c437b3d13b267414ba6af33e50d2d1cf28"},
diff --git a/installer/templates/phx_single/mix.exs b/installer/templates/phx_single/mix.exs
index d7fced644f..6f8d25792f 100644
--- a/installer/templates/phx_single/mix.exs
+++ b/installer/templates/phx_single/mix.exs
@@ -43,7 +43,7 @@ defmodule <%= @app_module %>.MixProject do
       {:phoenix_html, "~> 4.1"},
       {:phoenix_live_reload, "~> 1.2", only: :dev},
       # TODO bump on release to {:phoenix_live_view, "~> 1.0.0"},
-      {:phoenix_live_view, "~> 1.0.0-rc.0", override: true},
+      {:phoenix_live_view, "~> 1.0.0-rc.1", override: true},
       {:floki, ">= 0.30.0", only: :test},<% end %><%= if @dashboard do %>
       {:phoenix_live_dashboard, "~> 0.8.3"},<% end %><%= if @javascript do %>
       {:esbuild, "~> 0.8", runtime: Mix.env() == :dev},<% end %><%= if @css do %>
diff --git a/installer/templates/phx_umbrella/apps/app_name_web/mix.exs b/installer/templates/phx_umbrella/apps/app_name_web/mix.exs
index c8021e82c8..593ea2bedd 100644
--- a/installer/templates/phx_umbrella/apps/app_name_web/mix.exs
+++ b/installer/templates/phx_umbrella/apps/app_name_web/mix.exs
@@ -41,7 +41,7 @@ defmodule <%= @web_namespace %>.MixProject do
       {:phoenix_html, "~> 4.1"},
       {:phoenix_live_reload, "~> 1.2", only: :dev},
       # TODO bump on release to {:phoenix_live_view, "~> 1.0.0"},
-      {:phoenix_live_view, "~> 1.0.0-rc.0", override: true},
+      {:phoenix_live_view, "~> 1.0.0-rc.1", override: true},
       {:floki, ">= 0.30.0", only: :test},<% end %><%= if @dashboard do %>
       {:phoenix_live_dashboard, "~> 0.8.3"},<% end %><%= if @javascript do %>
       {:esbuild, "~> 0.8", runtime: Mix.env() == :dev},<% end %><%= if @css do %>
diff --git a/installer/templates/phx_umbrella/mix.exs b/installer/templates/phx_umbrella/mix.exs
index b973cf413e..7d48e0836f 100644
--- a/installer/templates/phx_umbrella/mix.exs
+++ b/installer/templates/phx_umbrella/mix.exs
@@ -28,7 +28,7 @@ defmodule <%= @root_app_module %>.MixProject do
       <%= if @dev or @phoenix_version.pre != [] do %><%= @phoenix_dep_umbrella_root %>,
       <% end %># Required to run "mix format" on ~H/.heex files from the umbrella root
       # TODO bump on release to {:phoenix_live_view, ">= 0.0.0"},
-      {:phoenix_live_view, "~> 1.0.0-rc.0", override: true}
+      {:phoenix_live_view, "~> 1.0.0-rc.1", override: true}
     ]<% else %>
     []<% end %>
   end
diff --git a/installer/test/phx_new_test.exs b/installer/test/phx_new_test.exs
index 9a635ad71f..9f48ca8342 100644
--- a/installer/test/phx_new_test.exs
+++ b/installer/test/phx_new_test.exs
@@ -201,7 +201,7 @@ defmodule Mix.Tasks.Phx.NewTest do
 
       assert_file(
         "phx_blog/config/test.exs",
-        ~R/database: "phx_blog_test#\{System.get_env\("MIX_TEST_PARTITION"\)\}"/
+        ~r/database: "phx_blog_test#\{System.get_env\("MIX_TEST_PARTITION"\)\}"/
       )
 
       assert_file("phx_blog/lib/phx_blog/repo.ex", ~r"defmodule PhxBlog.Repo")
diff --git a/integration_test/mix.exs b/integration_test/mix.exs
index 2064536a62..a0e596389a 100644
--- a/integration_test/mix.exs
+++ b/integration_test/mix.exs
@@ -42,7 +42,7 @@ defmodule Phoenix.Integration.MixProject do
       {:ecto_sqlite3, ">= 0.0.0"},
       {:phoenix_html, "~> 4.1"},
       # TODO bump on release to {:phoenix_live_view, "~> 1.0.0"},
-      {:phoenix_live_view, "~> 1.0.0-rc.0", override: true},
+      {:phoenix_live_view, "~> 1.0.0-rc.1", override: true},
       {:dns_cluster, "~> 0.1.1"},
       {:floki, ">= 0.30.0"},
       {:phoenix_live_reload, "~> 1.2"},
diff --git a/integration_test/mix.lock b/integration_test/mix.lock
index 61fb8799fa..a516ecfa41 100644
--- a/integration_test/mix.lock
+++ b/integration_test/mix.lock
@@ -1,6 +1,6 @@
 %{
   "argon2_elixir": {:hex, :argon2_elixir, "3.2.1", "f47740bf9f2a39ffef79ba48eb25dea2ee37bcc7eadf91d49615591d1a6fce1a", [:make, :mix], [{:comeonin, "~> 5.3", [hex: :comeonin, repo: "hexpm", optional: false]}, {:elixir_make, "~> 0.6", [hex: :elixir_make, repo: "hexpm", optional: false]}], "hexpm", "a813b78217394530b5fcf4c8070feee43df03ffef938d044019169c766315690"},
-  "bandit": {:hex, :bandit, "1.5.0", "3bc864a0da7f013ad3713a7f550c6a6ec0e19b8d8715ec678256a0dc197d5539", [:mix], [{:hpax, "~> 0.1.1", [hex: :hpax, repo: "hexpm", optional: false]}, {:plug, "~> 1.14", [hex: :plug, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}, {:thousand_island, "~> 1.0", [hex: :thousand_island, repo: "hexpm", optional: false]}, {:websock, "~> 0.5", [hex: :websock, repo: "hexpm", optional: false]}], "hexpm", "92d18d9a7228a597e0d4661ef69a874ea82d63ff49c7d801a5c68cb18ebbbd72"},
+  "bandit": {:hex, :bandit, "1.5.4", "8e56e7cfc06f3c57995be0d9bf4e45b972d8732f5c7e96ef8ec0735f52079527", [:mix], [{:hpax, "~> 0.2.0", [hex: :hpax, repo: "hexpm", optional: false]}, {:plug, "~> 1.14", [hex: :plug, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}, {:thousand_island, "~> 1.0", [hex: :thousand_island, repo: "hexpm", optional: false]}, {:websock, "~> 0.5", [hex: :websock, repo: "hexpm", optional: false]}], "hexpm", "04c2b38874769af67fe7f10034f606ad6dda1d8f80c4d7a0c616b347584d5aff"},
   "bcrypt_elixir": {:hex, :bcrypt_elixir, "3.1.0", "0b110a9a6c619b19a7f73fa3004aa11d6e719a67e672d1633dc36b6b2290a0f7", [:make, :mix], [{:comeonin, "~> 5.3", [hex: :comeonin, repo: "hexpm", optional: false]}, {:elixir_make, "~> 0.6", [hex: :elixir_make, repo: "hexpm", optional: false]}], "hexpm", "2ad2acb5a8bc049e8d5aa267802631912bb80d5f4110a178ae7999e69dca1bf7"},
   "castore": {:hex, :castore, "1.0.7", "b651241514e5f6956028147fe6637f7ac13802537e895a724f90bf3e36ddd1dd", [:mix], [], "hexpm", "da7785a4b0d2a021cd1292a60875a784b6caef71e76bf4917bdee1f390455cf5"},
   "cc_precompiler": {:hex, :cc_precompiler, "0.1.10", "47c9c08d8869cf09b41da36538f62bc1abd3e19e41701c2cea2675b53c704258", [:mix], [{:elixir_make, "~> 0.7", [hex: :elixir_make, repo: "hexpm", optional: false]}], "hexpm", "f6e046254e53cd6b41c6bacd70ae728011aa82b2742a80d6e2214855c6e06b22"},
@@ -9,37 +9,37 @@
   "decimal": {:hex, :decimal, "2.1.1", "5611dca5d4b2c3dd497dec8f68751f1f1a54755e8ed2a966c2633cf885973ad6", [:mix], [], "hexpm", "53cfe5f497ed0e7771ae1a475575603d77425099ba5faef9394932b35020ffcc"},
   "dns_cluster": {:hex, :dns_cluster, "0.1.3", "0bc20a2c88ed6cc494f2964075c359f8c2d00e1bf25518a6a6c7fd277c9b0c66", [:mix], [], "hexpm", "46cb7c4a1b3e52c7ad4cbe33ca5079fbde4840dedeafca2baf77996c2da1bc33"},
   "ecto": {:hex, :ecto, "3.11.2", "e1d26be989db350a633667c5cda9c3d115ae779b66da567c68c80cfb26a8c9ee", [:mix], [{:decimal, "~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "3c38bca2c6f8d8023f2145326cc8a80100c3ffe4dcbd9842ff867f7fc6156c65"},
-  "ecto_sql": {:hex, :ecto_sql, "3.11.1", "e9abf28ae27ef3916b43545f9578b4750956ccea444853606472089e7d169470", [:mix], [{:db_connection, "~> 2.4.1 or ~> 2.5", [hex: :db_connection, repo: "hexpm", optional: false]}, {:ecto, "~> 3.11.0", [hex: :ecto, repo: "hexpm", optional: false]}, {:myxql, "~> 0.6.0", [hex: :myxql, repo: "hexpm", optional: true]}, {:postgrex, "~> 0.16.0 or ~> 0.17.0 or ~> 1.0", [hex: :postgrex, repo: "hexpm", optional: true]}, {:tds, "~> 2.1.1 or ~> 2.2", [hex: :tds, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4.0 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "ce14063ab3514424276e7e360108ad6c2308f6d88164a076aac8a387e1fea634"},
-  "ecto_sqlite3": {:hex, :ecto_sqlite3, "0.15.1", "40f2fbd9e246455f8c42e7e0a77009ef806caa1b3ce6f717b2a0a80e8432fcfd", [:mix], [{:decimal, "~> 1.6 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}, {:ecto, "~> 3.11", [hex: :ecto, repo: "hexpm", optional: false]}, {:ecto_sql, "~> 3.11", [hex: :ecto_sql, repo: "hexpm", optional: false]}, {:exqlite, "~> 0.19", [hex: :exqlite, repo: "hexpm", optional: false]}], "hexpm", "28b16e177123c688948357176662bf9ff9084daddf950ef5b6baf3ee93707064"},
-  "elixir_make": {:hex, :elixir_make, "0.8.3", "d38d7ee1578d722d89b4d452a3e36bcfdc644c618f0d063b874661876e708683", [:mix], [{:castore, "~> 0.1 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}, {:certifi, "~> 2.0", [hex: :certifi, repo: "hexpm", optional: true]}], "hexpm", "5c99a18571a756d4af7a4d89ca75c28ac899e6103af6f223982f09ce44942cc9"},
+  "ecto_sql": {:hex, :ecto_sql, "3.11.3", "4eb7348ff8101fbc4e6bbc5a4404a24fecbe73a3372d16569526b0cf34ebc195", [:mix], [{:db_connection, "~> 2.4.1 or ~> 2.5", [hex: :db_connection, repo: "hexpm", optional: false]}, {:ecto, "~> 3.11.0", [hex: :ecto, repo: "hexpm", optional: false]}, {:myxql, "~> 0.6", [hex: :myxql, repo: "hexpm", optional: true]}, {:postgrex, "~> 0.16 or ~> 1.0", [hex: :postgrex, repo: "hexpm", optional: true]}, {:tds, "~> 2.1.1 or ~> 2.2", [hex: :tds, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4.0 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "e5f36e3d736b99c7fee3e631333b8394ade4bafe9d96d35669fca2d81c2be928"},
+  "ecto_sqlite3": {:hex, :ecto_sqlite3, "0.16.0", "1cdc8ea6319e7cb1bc273a36db0ecde69ad56b4dea3037689ad8c0afc6a91e16", [:mix], [{:decimal, "~> 1.6 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}, {:ecto, "~> 3.11", [hex: :ecto, repo: "hexpm", optional: false]}, {:ecto_sql, "~> 3.11", [hex: :ecto_sql, repo: "hexpm", optional: false]}, {:exqlite, "~> 0.22", [hex: :exqlite, repo: "hexpm", optional: false]}], "hexpm", "73c9dd56830d67c951bc254c082cb0a7f9fa139d44866bc3186c8859d1b4d787"},
+  "elixir_make": {:hex, :elixir_make, "0.8.4", "4960a03ce79081dee8fe119d80ad372c4e7badb84c493cc75983f9d3bc8bde0f", [:mix], [{:castore, "~> 0.1 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}, {:certifi, "~> 2.0", [hex: :certifi, repo: "hexpm", optional: true]}], "hexpm", "6e7f1d619b5f61dfabd0a20aa268e575572b542ac31723293a4c1a567d5ef040"},
   "esbuild": {:hex, :esbuild, "0.8.1", "0cbf919f0eccb136d2eeef0df49c4acf55336de864e63594adcea3814f3edf41", [:mix], [{:castore, ">= 0.0.0", [hex: :castore, repo: "hexpm", optional: false]}, {:jason, "~> 1.4", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "25fc876a67c13cb0a776e7b5d7974851556baeda2085296c14ab48555ea7560f"},
   "expo": {:hex, :expo, "0.5.2", "beba786aab8e3c5431813d7a44b828e7b922bfa431d6bfbada0904535342efe2", [:mix], [], "hexpm", "8c9bfa06ca017c9cb4020fabe980bc7fdb1aaec059fd004c2ab3bff03b1c599c"},
-  "exqlite": {:hex, :exqlite, "0.22.0", "8bc24a2b807f34ae1af15203f16668bf6abd171b35e4097d7ad56a717f9bafa8", [:make, :mix], [{:cc_precompiler, "~> 0.1", [hex: :cc_precompiler, repo: "hexpm", optional: false]}, {:db_connection, "~> 2.1", [hex: :db_connection, repo: "hexpm", optional: false]}, {:elixir_make, "~> 0.8", [hex: :elixir_make, repo: "hexpm", optional: false]}, {:table, "~> 0.1.0", [hex: :table, repo: "hexpm", optional: true]}], "hexpm", "3ea23b9fab54d68815281cac15ca4c7c4cbd0e8832dffe4bd395742f938e87c0"},
+  "exqlite": {:hex, :exqlite, "0.23.0", "6e851c937a033299d0784994c66da24845415072adbc455a337e20087bce9033", [:make, :mix], [{:cc_precompiler, "~> 0.1", [hex: :cc_precompiler, repo: "hexpm", optional: false]}, {:db_connection, "~> 2.1", [hex: :db_connection, repo: "hexpm", optional: false]}, {:elixir_make, "~> 0.8", [hex: :elixir_make, repo: "hexpm", optional: false]}, {:table, "~> 0.1.0", [hex: :table, repo: "hexpm", optional: true]}], "hexpm", "404341cceec5e6466aaed160cf0b58be2019b60af82588c215e1224ebd3ec831"},
   "file_system": {:hex, :file_system, "1.0.0", "b689cc7dcee665f774de94b5a832e578bd7963c8e637ef940cd44327db7de2cd", [:mix], [], "hexpm", "6752092d66aec5a10e662aefeed8ddb9531d79db0bc145bb8c40325ca1d8536d"},
   "finch": {:hex, :finch, "0.18.0", "944ac7d34d0bd2ac8998f79f7a811b21d87d911e77a786bc5810adb75632ada4", [:mix], [{:castore, "~> 0.1 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: false]}, {:mime, "~> 1.0 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:mint, "~> 1.3", [hex: :mint, repo: "hexpm", optional: false]}, {:nimble_options, "~> 0.4 or ~> 1.0", [hex: :nimble_options, repo: "hexpm", optional: false]}, {:nimble_pool, "~> 0.2.6 or ~> 1.0", [hex: :nimble_pool, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "69f5045b042e531e53edc2574f15e25e735b522c37e2ddb766e15b979e03aa65"},
   "floki": {:hex, :floki, "0.36.2", "a7da0193538c93f937714a6704369711998a51a6164a222d710ebd54020aa7a3", [:mix], [], "hexpm", "a8766c0bc92f074e5cb36c4f9961982eda84c5d2b8e979ca67f5c268ec8ed580"},
   "gettext": {:hex, :gettext, "0.24.0", "6f4d90ac5f3111673cbefc4ebee96fe5f37a114861ab8c7b7d5b30a1108ce6d8", [:mix], [{:expo, "~> 0.5.1", [hex: :expo, repo: "hexpm", optional: false]}], "hexpm", "bdf75cdfcbe9e4622dd18e034b227d77dd17f0f133853a1c73b97b3d6c770e8b"},
   "heroicons": {:git, "https://github.com/tailwindlabs/heroicons.git", "88ab3a0d790e6a47404cba02800a6b25d2afae50", [tag: "v2.1.1", sparse: "optimized"]},
-  "hpax": {:hex, :hpax, "0.1.2", "09a75600d9d8bbd064cdd741f21fc06fc1f4cf3d0fcc335e5aa19be1a7235c84", [:mix], [], "hexpm", "2c87843d5a23f5f16748ebe77969880e29809580efdaccd615cd3bed628a8c13"},
+  "hpax": {:hex, :hpax, "0.2.0", "5a58219adcb75977b2edce5eb22051de9362f08236220c9e859a47111c194ff5", [:mix], [], "hexpm", "bea06558cdae85bed075e6c036993d43cd54d447f76d8190a8db0dc5893fa2f1"},
   "jason": {:hex, :jason, "1.4.1", "af1504e35f629ddcdd6addb3513c3853991f694921b1b9368b0bd32beb9f1b63", [:mix], [{:decimal, "~> 1.0 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "fbb01ecdfd565b56261302f7e1fcc27c4fb8f32d56eab74db621fc154604a7a1"},
   "mime": {:hex, :mime, "2.0.5", "dc34c8efd439abe6ae0343edbb8556f4d63f178594894720607772a041b04b02", [:mix], [], "hexpm", "da0d64a365c45bc9935cc5c8a7fc5e49a0e0f9932a761c55d6c52b142780a05c"},
-  "mint": {:hex, :mint, "1.6.0", "88a4f91cd690508a04ff1c3e28952f322528934be541844d54e0ceb765f01d5e", [:mix], [{:castore, "~> 0.1.0 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}, {:hpax, "~> 0.1.1 or ~> 0.2.0", [hex: :hpax, repo: "hexpm", optional: false]}], "hexpm", "3c5ae85d90a5aca0a49c0d8b67360bbe407f3b54f1030a111047ff988e8fefaa"},
-  "myxql": {:hex, :myxql, "0.6.4", "1502ea37ee23c31b79725b95d4cc3553693c2bda7421b1febc50722fd988c918", [:mix], [{:db_connection, "~> 2.4.1 or ~> 2.5", [hex: :db_connection, repo: "hexpm", optional: false]}, {:decimal, "~> 1.6 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}, {:geo, "~> 3.4", [hex: :geo, repo: "hexpm", optional: true]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:table, "~> 0.1.0", [hex: :table, repo: "hexpm", optional: true]}], "hexpm", "a3307f4671f3009d3708283649adf205bfe280f7e036fc8ef7f16dbf821ab8e9"},
-  "nimble_options": {:hex, :nimble_options, "1.1.0", "3b31a57ede9cb1502071fade751ab0c7b8dbe75a9a4c2b5bbb0943a690b63172", [:mix], [], "hexpm", "8bbbb3941af3ca9acc7835f5655ea062111c9c27bcac53e004460dfd19008a99"},
+  "mint": {:hex, :mint, "1.6.1", "065e8a5bc9bbd46a41099dfea3e0656436c5cbcb6e741c80bd2bad5cd872446f", [:mix], [{:castore, "~> 0.1.0 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}, {:hpax, "~> 0.1.1 or ~> 0.2.0", [hex: :hpax, repo: "hexpm", optional: false]}], "hexpm", "4fc518dcc191d02f433393a72a7ba3f6f94b101d094cb6bf532ea54c89423780"},
+  "myxql": {:hex, :myxql, "0.7.0", "3382f139b0b0da977a8fc33c8cded125e20df2e400f8d7b7e674fa62a7e077dd", [:mix], [{:db_connection, "~> 2.4.1 or ~> 2.5", [hex: :db_connection, repo: "hexpm", optional: false]}, {:decimal, "~> 1.6 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}, {:geo, "~> 3.4", [hex: :geo, repo: "hexpm", optional: true]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:table, "~> 0.1.0", [hex: :table, repo: "hexpm", optional: true]}], "hexpm", "40e4b7ad4973c8b895e86a3de04ff7a79c2cf72b9f2bddef7717afb4ab36d8c0"},
+  "nimble_options": {:hex, :nimble_options, "1.1.1", "e3a492d54d85fc3fd7c5baf411d9d2852922f66e69476317787a7b2bb000a61b", [:mix], [], "hexpm", "821b2470ca9442c4b6984882fe9bb0389371b8ddec4d45a9504f00a66f650b44"},
   "nimble_pool": {:hex, :nimble_pool, "1.1.0", "bf9c29fbdcba3564a8b800d1eeb5a3c58f36e1e11d7b7fb2e084a643f645f06b", [:mix], [], "hexpm", "af2e4e6b34197db81f7aad230c1118eac993acc0dae6bc83bac0126d4ae0813a"},
   "pbkdf2_elixir": {:hex, :pbkdf2_elixir, "2.2.0", "2ec4f7daae2bf74cb9e52df3554bbdcec8a38104a7f0ccaa4d45d5919e4c3f19", [:mix], [{:comeonin, "~> 5.3", [hex: :comeonin, repo: "hexpm", optional: false]}], "hexpm", "6c4af97f5cae925c56caded648520510ea583eebf1587e185b9f445762197aff"},
-  "phoenix_ecto": {:hex, :phoenix_ecto, "4.5.1", "6fdbc334ea53620e71655664df6f33f670747b3a7a6c4041cdda3e2c32df6257", [:mix], [{:ecto, "~> 3.5", [hex: :ecto, repo: "hexpm", optional: false]}, {:phoenix_html, "~> 2.14.2 or ~> 3.0 or ~> 4.1", [hex: :phoenix_html, repo: "hexpm", optional: true]}, {:plug, "~> 1.9", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm", "ebe43aa580db129e54408e719fb9659b7f9e0d52b965c5be26cdca416ecead28"},
+  "phoenix_ecto": {:hex, :phoenix_ecto, "4.6.1", "96798325fab2fed5a824ca204e877b81f9afd2e480f581e81f7b4b64a5a477f2", [:mix], [{:ecto, "~> 3.5", [hex: :ecto, repo: "hexpm", optional: false]}, {:phoenix_html, "~> 2.14.2 or ~> 3.0 or ~> 4.1", [hex: :phoenix_html, repo: "hexpm", optional: true]}, {:plug, "~> 1.9", [hex: :plug, repo: "hexpm", optional: false]}, {:postgrex, "~> 0.17", [hex: :postgrex, repo: "hexpm", optional: true]}], "hexpm", "0ae544ff99f3c482b0807c5cec2c8289e810ecacabc04959d82c3337f4703391"},
   "phoenix_html": {:hex, :phoenix_html, "4.1.1", "4c064fd3873d12ebb1388425a8f2a19348cef56e7289e1998e2d2fa758aa982e", [:mix], [], "hexpm", "f2f2df5a72bc9a2f510b21497fd7d2b86d932ec0598f0210fed4114adc546c6f"},
   "phoenix_live_dashboard": {:hex, :phoenix_live_dashboard, "0.8.3", "7ff51c9b6609470f681fbea20578dede0e548302b0c8bdf338b5a753a4f045bf", [:mix], [{:ecto, "~> 3.6.2 or ~> 3.7", [hex: :ecto, repo: "hexpm", optional: true]}, {:ecto_mysql_extras, "~> 0.5", [hex: :ecto_mysql_extras, repo: "hexpm", optional: true]}, {:ecto_psql_extras, "~> 0.7", [hex: :ecto_psql_extras, repo: "hexpm", optional: true]}, {:ecto_sqlite3_extras, "~> 1.1.7 or ~> 1.2.0", [hex: :ecto_sqlite3_extras, repo: "hexpm", optional: true]}, {:mime, "~> 1.6 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:phoenix_live_view, "~> 0.19 or ~> 1.0", [hex: :phoenix_live_view, repo: "hexpm", optional: false]}, {:telemetry_metrics, "~> 0.6 or ~> 1.0", [hex: :telemetry_metrics, repo: "hexpm", optional: false]}], "hexpm", "f9470a0a8bae4f56430a23d42f977b5a6205fdba6559d76f932b876bfaec652d"},
   "phoenix_live_reload": {:hex, :phoenix_live_reload, "1.5.3", "f2161c207fda0e4fb55165f650f7f8db23f02b29e3bff00ff7ef161d6ac1f09d", [:mix], [{:file_system, "~> 0.3 or ~> 1.0", [hex: :file_system, repo: "hexpm", optional: false]}, {:phoenix, "~> 1.4", [hex: :phoenix, repo: "hexpm", optional: false]}], "hexpm", "b4ec9cd73cb01ff1bd1cac92e045d13e7030330b74164297d1aee3907b54803c"},
-  "phoenix_live_view": {:hex, :phoenix_live_view, "1.0.0-rc.0", "42a5a568d7105d1d4e6542badfe061154491da584836a4a4ead148a2c67d649e", [:mix], [{:floki, "~> 0.36", [hex: :floki, repo: "hexpm", optional: true]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:phoenix, "~> 1.6.15 or ~> 1.7.0", [hex: :phoenix, repo: "hexpm", optional: false]}, {:phoenix_html, "~> 3.3 or ~> 4.0", [hex: :phoenix_html, repo: "hexpm", optional: false]}, {:phoenix_template, "~> 1.0", [hex: :phoenix_template, repo: "hexpm", optional: false]}, {:phoenix_view, "~> 2.0", [hex: :phoenix_view, repo: "hexpm", optional: true]}, {:plug, "~> 1.15", [hex: :plug, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4.2 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "10cb32643a0cfecb6f3f1feff8211273ba5917891e451b635abc940e3b907a4a"},
+  "phoenix_live_view": {:hex, :phoenix_live_view, "1.0.0-rc.1", "adfb0ab3edbad3bac63661ee0367c803d96178b8e8bbb8ff2b6c7cebdb820491", [:mix], [{:floki, "~> 0.36", [hex: :floki, repo: "hexpm", optional: true]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:phoenix, "~> 1.6.15 or ~> 1.7.0", [hex: :phoenix, repo: "hexpm", optional: false]}, {:phoenix_html, "~> 3.3 or ~> 4.0", [hex: :phoenix_html, repo: "hexpm", optional: false]}, {:phoenix_template, "~> 1.0", [hex: :phoenix_template, repo: "hexpm", optional: false]}, {:phoenix_view, "~> 2.0", [hex: :phoenix_view, repo: "hexpm", optional: true]}, {:plug, "~> 1.15", [hex: :plug, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4.2 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "ffc940d7af43c3d6c26faa7693872f95178f4ca886434224d29d4b54d3a38ae3"},
   "phoenix_pubsub": {:hex, :phoenix_pubsub, "2.1.3", "3168d78ba41835aecad272d5e8cd51aa87a7ac9eb836eabc42f6e57538e3731d", [:mix], [], "hexpm", "bba06bc1dcfd8cb086759f0edc94a8ba2bc8896d5331a1e2c2902bf8e36ee502"},
   "phoenix_template": {:hex, :phoenix_template, "1.0.4", "e2092c132f3b5e5b2d49c96695342eb36d0ed514c5b252a77048d5969330d639", [:mix], [{:phoenix_html, "~> 2.14.2 or ~> 3.0 or ~> 4.0", [hex: :phoenix_html, repo: "hexpm", optional: true]}], "hexpm", "2c0c81f0e5c6753faf5cca2f229c9709919aba34fab866d3bc05060c9c444206"},
-  "plug": {:hex, :plug, "1.15.3", "712976f504418f6dff0a3e554c40d705a9bcf89a7ccef92fc6a5ef8f16a30a97", [:mix], [{:mime, "~> 1.0 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:plug_crypto, "~> 1.1.1 or ~> 1.2 or ~> 2.0", [hex: :plug_crypto, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4.3 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "cc4365a3c010a56af402e0809208873d113e9c38c401cabd88027ef4f5c01fd2"},
+  "plug": {:hex, :plug, "1.16.0", "1d07d50cb9bb05097fdf187b31cf087c7297aafc3fed8299aac79c128a707e47", [:mix], [{:mime, "~> 1.0 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:plug_crypto, "~> 1.1.1 or ~> 1.2 or ~> 2.0", [hex: :plug_crypto, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4.3 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "cbf53aa1f5c4d758a7559c0bd6d59e286c2be0c6a1fac8cc3eee2f638243b93e"},
   "plug_crypto": {:hex, :plug_crypto, "2.1.0", "f44309c2b06d249c27c8d3f65cfe08158ade08418cf540fd4f72d4d6863abb7b", [:mix], [], "hexpm", "131216a4b030b8f8ce0f26038bc4421ae60e4bb95c5cf5395e1421437824c4fa"},
-  "postgrex": {:hex, :postgrex, "0.17.5", "0483d054938a8dc069b21bdd636bf56c487404c241ce6c319c1f43588246b281", [:mix], [{:db_connection, "~> 2.1", [hex: :db_connection, repo: "hexpm", optional: false]}, {:decimal, "~> 1.5 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:table, "~> 0.1.0", [hex: :table, repo: "hexpm", optional: true]}], "hexpm", "50b8b11afbb2c4095a3ba675b4f055c416d0f3d7de6633a595fc131a828a67eb"},
-  "swoosh": {:hex, :swoosh, "1.16.5", "5742f24c4d081671ebe87d8e7f6595cf75205d7f808cc5d55b09e4598b583413", [:mix], [{:bandit, ">= 1.0.0", [hex: :bandit, repo: "hexpm", optional: true]}, {:cowboy, "~> 1.1 or ~> 2.4", [hex: :cowboy, repo: "hexpm", optional: true]}, {:ex_aws, "~> 2.1", [hex: :ex_aws, repo: "hexpm", optional: true]}, {:finch, "~> 0.6", [hex: :finch, repo: "hexpm", optional: true]}, {:gen_smtp, "~> 0.13 or ~> 1.0", [hex: :gen_smtp, repo: "hexpm", optional: true]}, {:hackney, "~> 1.9", [hex: :hackney, repo: "hexpm", optional: true]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:mail, "~> 0.2", [hex: :mail, repo: "hexpm", optional: true]}, {:mime, "~> 1.1 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:mua, "~> 0.1.0", [hex: :mua, repo: "hexpm", optional: true]}, {:multipart, "~> 0.4", [hex: :multipart, repo: "hexpm", optional: true]}, {:plug, "~> 1.9", [hex: :plug, repo: "hexpm", optional: true]}, {:plug_cowboy, ">= 1.0.0", [hex: :plug_cowboy, repo: "hexpm", optional: true]}, {:req, "~> 0.4 or ~> 1.0", [hex: :req, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4.2 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "b2324cf696b09ee52e5e1049dcc77880a11fe618a381e2df1c5ca5d69c380eb0"},
-  "tailwind": {:hex, :tailwind, "0.2.2", "9e27288b568ede1d88517e8c61259bc214a12d7eed271e102db4c93fcca9b2cd", [:mix], [{:castore, ">= 0.0.0", [hex: :castore, repo: "hexpm", optional: false]}], "hexpm", "ccfb5025179ea307f7f899d1bb3905cd0ac9f687ed77feebc8f67bdca78565c4"},
+  "postgrex": {:hex, :postgrex, "0.18.0", "f34664101eaca11ff24481ed4c378492fed2ff416cd9b06c399e90f321867d7e", [:mix], [{:db_connection, "~> 2.1", [hex: :db_connection, repo: "hexpm", optional: false]}, {:decimal, "~> 1.5 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:table, "~> 0.1.0", [hex: :table, repo: "hexpm", optional: true]}], "hexpm", "a042989ba1bc1cca7383ebb9e461398e3f89f868c92ce6671feb7ef132a252d1"},
+  "swoosh": {:hex, :swoosh, "1.16.9", "20c6a32ea49136a4c19f538e27739bb5070558c0fa76b8a95f4d5d5ca7d319a1", [:mix], [{:bandit, ">= 1.0.0", [hex: :bandit, repo: "hexpm", optional: true]}, {:cowboy, "~> 1.1 or ~> 2.4", [hex: :cowboy, repo: "hexpm", optional: true]}, {:ex_aws, "~> 2.1", [hex: :ex_aws, repo: "hexpm", optional: true]}, {:finch, "~> 0.6", [hex: :finch, repo: "hexpm", optional: true]}, {:gen_smtp, "~> 0.13 or ~> 1.0", [hex: :gen_smtp, repo: "hexpm", optional: true]}, {:hackney, "~> 1.9", [hex: :hackney, repo: "hexpm", optional: true]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:mail, "~> 0.2", [hex: :mail, repo: "hexpm", optional: true]}, {:mime, "~> 1.1 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:mua, "~> 0.2.0", [hex: :mua, repo: "hexpm", optional: true]}, {:multipart, "~> 0.4", [hex: :multipart, repo: "hexpm", optional: true]}, {:plug, "~> 1.9", [hex: :plug, repo: "hexpm", optional: true]}, {:plug_cowboy, ">= 1.0.0", [hex: :plug_cowboy, repo: "hexpm", optional: true]}, {:req, "~> 0.5 or ~> 1.0", [hex: :req, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4.2 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "878b1a7a6c10ebbf725a3349363f48f79c5e3d792eb621643b0d276a38acc0a6"},
+  "tailwind": {:hex, :tailwind, "0.2.3", "277f08145d407de49650d0a4685dc062174bdd1ae7731c5f1da86163a24dfcdb", [:mix], [{:castore, ">= 0.0.0", [hex: :castore, repo: "hexpm", optional: false]}], "hexpm", "8e45e7a34a676a7747d04f7913a96c770c85e6be810a1d7f91e713d3a3655b5d"},
   "tds": {:hex, :tds, "2.3.5", "fedfb96d53206f01eac62ead859e47e1541a62e1553e9eb7a8801c7dca59eae8", [:mix], [{:db_connection, "~> 2.0", [hex: :db_connection, repo: "hexpm", optional: false]}, {:decimal, "~> 1.9 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:table, "~> 0.1.0", [hex: :table, repo: "hexpm", optional: true]}], "hexpm", "52e350f5dd5584bbcff9859e331be144d290b41bd4c749b936014a17660662f2"},
   "telemetry": {:hex, :telemetry, "1.2.1", "68fdfe8d8f05a8428483a97d7aab2f268aaff24b49e0f599faa091f1d4e7f61c", [:rebar3], [], "hexpm", "dad9ce9d8effc621708f99eac538ef1cbe05d6a874dd741de2e689c47feafed5"},
   "telemetry_metrics": {:hex, :telemetry_metrics, "1.0.0", "29f5f84991ca98b8eb02fc208b2e6de7c95f8bb2294ef244a176675adc7775df", [:mix], [{:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "f23713b3847286a534e005126d4c959ebcca68ae9582118ce436b521d1d47d5d"},
diff --git a/mix.exs b/mix.exs
index ed08075619..d2585279f6 100644
--- a/mix.exs
+++ b/mix.exs
@@ -8,7 +8,7 @@ defmodule Phoenix.MixProject do
     end
   end
 
-  @version "1.7.12"
+  @version "1.7.13"
   @scm_url "https://github.com/phoenixframework/phoenix"
 
   # If the elixir requirement is updated, we need to make the installer
diff --git a/mix.lock b/mix.lock
index be6426c241..71240a24a0 100644
--- a/mix.lock
+++ b/mix.lock
@@ -9,16 +9,16 @@
   "ecto": {:hex, :ecto, "3.10.1", "c6757101880e90acc6125b095853176a02da8f1afe056f91f1f90b80c9389822", [:mix], [{:decimal, "~> 1.6 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "d2ac4255f1601bdf7ac74c0ed971102c6829dc158719b94bd30041bbad77f87a"},
   "ecto_sql": {:hex, :ecto_sql, "3.10.1", "6ea6b3036a0b0ca94c2a02613fd9f742614b5cfe494c41af2e6571bb034dd94c", [:mix], [{:db_connection, "~> 2.5 or ~> 2.4.1", [hex: :db_connection, repo: "hexpm", optional: false]}, {:ecto, "~> 3.10.0", [hex: :ecto, repo: "hexpm", optional: false]}, {:myxql, "~> 0.6.0", [hex: :myxql, repo: "hexpm", optional: true]}, {:postgrex, "~> 0.16.0 or ~> 0.17.0 or ~> 1.0", [hex: :postgrex, repo: "hexpm", optional: true]}, {:tds, "~> 2.1.1 or ~> 2.2", [hex: :tds, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4.0 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "f6a25bdbbd695f12c8171eaff0851fa4c8e72eec1e98c7364402dda9ce11c56b"},
   "esbuild": {:hex, :esbuild, "0.8.1", "0cbf919f0eccb136d2eeef0df49c4acf55336de864e63594adcea3814f3edf41", [:mix], [{:castore, ">= 0.0.0", [hex: :castore, repo: "hexpm", optional: false]}, {:jason, "~> 1.4", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "25fc876a67c13cb0a776e7b5d7974851556baeda2085296c14ab48555ea7560f"},
-  "ex_doc": {:hex, :ex_doc, "0.32.2", "f60bbeb6ccbe75d005763e2a328e6f05e0624232f2393bc693611c2d3ae9fa0e", [:mix], [{:earmark_parser, "~> 1.4.39", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_c, ">= 0.1.0", [hex: :makeup_c, repo: "hexpm", optional: true]}, {:makeup_elixir, "~> 0.14 or ~> 1.0", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1 or ~> 1.0", [hex: :makeup_erlang, repo: "hexpm", optional: false]}, {:makeup_html, ">= 0.1.0", [hex: :makeup_html, repo: "hexpm", optional: true]}], "hexpm", "a4480305cdfe7fdfcbb77d1092c76161626d9a7aa4fb698aee745996e34602df"},
+  "ex_doc": {:hex, :ex_doc, "0.34.0", "ab95e0775db3df71d30cf8d78728dd9261c355c81382bcd4cefdc74610bef13e", [:mix], [{:earmark_parser, "~> 1.4.39", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_c, ">= 0.1.0", [hex: :makeup_c, repo: "hexpm", optional: true]}, {:makeup_elixir, "~> 0.14 or ~> 1.0", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1 or ~> 1.0", [hex: :makeup_erlang, repo: "hexpm", optional: false]}, {:makeup_html, ">= 0.1.0", [hex: :makeup_html, repo: "hexpm", optional: true]}], "hexpm", "60734fb4c1353f270c3286df4a0d51e65a2c1d9fba66af3940847cc65a8066d7"},
   "gettext": {:hex, :gettext, "0.20.0", "75ad71de05f2ef56991dbae224d35c68b098dd0e26918def5bb45591d5c8d429", [:mix], [], "hexpm", "1c03b177435e93a47441d7f681a7040bd2a816ece9e2666d1c9001035121eb3d"},
   "hpax": {:hex, :hpax, "0.1.1", "2396c313683ada39e98c20a75a82911592b47e5c24391363343bde74f82396ca", [:mix], [], "hexpm", "0ae7d5a0b04a8a60caf7a39fcf3ec476f35cc2cc16c05abea730d3ce6ac6c826"},
   "jason": {:hex, :jason, "1.4.0", "e855647bc964a44e2f67df589ccf49105ae039d4179db7f6271dfd3843dc27e6", [:mix], [{:decimal, "~> 1.0 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "79a3791085b2a0f743ca04cec0f7be26443738779d09302e01318f97bdb82121"},
-  "makeup": {:hex, :makeup, "1.1.1", "fa0bc768698053b2b3869fa8a62616501ff9d11a562f3ce39580d60860c3a55e", [:mix], [{:nimble_parsec, "~> 1.2.2 or ~> 1.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "5dc62fbdd0de44de194898b6710692490be74baa02d9d108bc29f007783b0b48"},
+  "makeup": {:hex, :makeup, "1.1.2", "9ba8837913bdf757787e71c1581c21f9d2455f4dd04cfca785c70bbfff1a76a3", [:mix], [{:nimble_parsec, "~> 1.2.2 or ~> 1.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "cce1566b81fbcbd21eca8ffe808f33b221f9eee2cbc7a1706fc3da9ff18e6cac"},
   "makeup_diff": {:hex, :makeup_diff, "0.1.0", "5be352b6aa6f07fa6a236e3efd7ba689a03f28fb5d35b7a0fa0a1e4a64f6d8bb", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "186bad5bb433a8afeb16b01423950e440072284a4103034ca899180343b9b4ac"},
   "makeup_eex": {:hex, :makeup_eex, "0.1.1", "89352d5da318d97ae27bbcc87201f274504d2b71ede58ca366af6a5fbed9508d", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.16", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_html, "~> 0.1.0", [hex: :makeup_html, repo: "hexpm", optional: false]}, {:nimble_parsec, "~> 1.2", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "d111a0994eaaab09ef1a4b3b313ef806513bb4652152c26c0d7ca2be8402a964"},
   "makeup_elixir": {:hex, :makeup_elixir, "0.16.2", "627e84b8e8bf22e60a2579dad15067c755531fea049ae26ef1020cad58fe9578", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}, {:nimble_parsec, "~> 1.2.3 or ~> 1.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "41193978704763f6bbe6cc2758b84909e62984c7752b3784bd3c218bb341706b"},
   "makeup_erlang": {:hex, :makeup_erlang, "1.0.0", "6f0eff9c9c489f26b69b61440bf1b238d95badae49adac77973cbacae87e3c2e", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "ea7a9307de9d1548d2a72d299058d1fd2339e3d398560a0e46c27dab4891e4d2"},
-  "makeup_html": {:hex, :makeup_html, "0.1.0", "b0228fda985e311d8f0d25bed58f8280826633a38d7448cabdd723e116165bcf", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "0ca44e7dcb8d933e010740324470dd8ec947243b51304bd34b8165ef3281edc2"},
+  "makeup_html": {:hex, :makeup_html, "0.1.1", "c3d4abd39d5f7e925faca72ada6e9cc5c6f5fa7cd5bc0158315832656cf14d7f", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "44f2a61bc5243645dd7fafeaa6cc28793cd22f3c76b861e066168f9a5b2c26a4"},
   "mime": {:hex, :mime, "2.0.5", "dc34c8efd439abe6ae0343edbb8556f4d63f178594894720607772a041b04b02", [:mix], [], "hexpm", "da0d64a365c45bc9935cc5c8a7fc5e49a0e0f9932a761c55d6c52b142780a05c"},
   "mint": {:hex, :mint, "1.4.1", "49b3b6ea35a9a38836d2ad745251b01ca9ec062f7cb66f546bf22e6699137126", [:mix], [{:castore, "~> 0.1.0", [hex: :castore, repo: "hexpm", optional: true]}, {:hpax, "~> 0.1.1", [hex: :hpax, repo: "hexpm", optional: false]}], "hexpm", "cd261766e61011a9079cccf8fa9d826e7a397c24fbedf0e11b49312bea629b58"},
   "mint_web_socket": {:hex, :mint_web_socket, "1.0.0", "b33e534a938ec10736cef2b00cd485f6abd70aef68b9194f4d92fe2f7b8bba06", [:mix], [{:mint, "~> 1.4 and >= 1.4.1", [hex: :mint, repo: "hexpm", optional: false]}], "hexpm", "3d4fd81190fe60f16fef5ade89e008463d72e6a608a7f6af9041cd8b47458e30"},
diff --git a/package.json b/package.json
index 60af96adbe..ec6943e0e4 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "phoenix",
-  "version": "1.7.12",
+  "version": "1.7.13",
   "description": "The official JavaScript client for the Phoenix web framework.",
   "license": "MIT",
   "module": "./priv/static/phoenix.mjs",
diff --git a/priv/static/phoenix.cjs.js b/priv/static/phoenix.cjs.js
index 676c99a0a5..a4134516b8 100644
--- a/priv/static/phoenix.cjs.js
+++ b/priv/static/phoenix.cjs.js
@@ -1029,7 +1029,7 @@ var Socket = class {
     this.primaryPassedHealthCheck = false;
     this.longPollFallbackMs = opts.longPollFallbackMs;
     this.fallbackTimer = null;
-    this.sessionStore = opts.sessionStorage || global.sessionStorage;
+    this.sessionStore = opts.sessionStorage || global && global.sessionStorage;
     this.establishedConnections = 0;
     this.defaultEncoder = serializer_default.encode.bind(serializer_default);
     this.defaultDecoder = serializer_default.decode.bind(serializer_default);
diff --git a/priv/static/phoenix.cjs.js.map b/priv/static/phoenix.cjs.js.map
index 536e2669eb..30ec76025d 100644
--- a/priv/static/phoenix.cjs.js.map
+++ b/priv/static/phoenix.cjs.js.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["../../assets/js/phoenix/index.js", "../../assets/js/phoenix/utils.js", "../../assets/js/phoenix/constants.js", "../../assets/js/phoenix/push.js", "../../assets/js/phoenix/timer.js", "../../assets/js/phoenix/channel.js", "../../assets/js/phoenix/ajax.js", "../../assets/js/phoenix/longpoll.js", "../../assets/js/phoenix/presence.js", "../../assets/js/phoenix/serializer.js", "../../assets/js/phoenix/socket.js"],
-  "sourcesContent": ["/**\n * Phoenix Channels JavaScript client\n *\n * ## Socket Connection\n *\n * A single connection is established to the server and\n * channels are multiplexed over the connection.\n * Connect to the server using the `Socket` class:\n *\n * ```javascript\n * let socket = new Socket(\"/socket\", {params: {userToken: \"123\"}})\n * socket.connect()\n * ```\n *\n * The `Socket` constructor takes the mount point of the socket,\n * the authentication params, as well as options that can be found in\n * the Socket docs, such as configuring the `LongPoll` transport, and\n * heartbeat.\n *\n * ## Channels\n *\n * Channels are isolated, concurrent processes on the server that\n * subscribe to topics and broker events between the client and server.\n * To join a channel, you must provide the topic, and channel params for\n * authorization. Here's an example chat room example where `\"new_msg\"`\n * events are listened for, messages are pushed to the server, and\n * the channel is joined with ok/error/timeout matches:\n *\n * ```javascript\n * let channel = socket.channel(\"room:123\", {token: roomToken})\n * channel.on(\"new_msg\", msg => console.log(\"Got message\", msg) )\n * $input.onEnter( e => {\n *   channel.push(\"new_msg\", {body: e.target.val}, 10000)\n *     .receive(\"ok\", (msg) => console.log(\"created message\", msg) )\n *     .receive(\"error\", (reasons) => console.log(\"create failed\", reasons) )\n *     .receive(\"timeout\", () => console.log(\"Networking issue...\") )\n * })\n *\n * channel.join()\n *   .receive(\"ok\", ({messages}) => console.log(\"catching up\", messages) )\n *   .receive(\"error\", ({reason}) => console.log(\"failed join\", reason) )\n *   .receive(\"timeout\", () => console.log(\"Networking issue. Still waiting...\"))\n *```\n *\n * ## Joining\n *\n * Creating a channel with `socket.channel(topic, params)`, binds the params to\n * `channel.params`, which are sent up on `channel.join()`.\n * Subsequent rejoins will send up the modified params for\n * updating authorization params, or passing up last_message_id information.\n * Successful joins receive an \"ok\" status, while unsuccessful joins\n * receive \"error\".\n *\n * With the default serializers and WebSocket transport, JSON text frames are\n * used for pushing a JSON object literal. If an `ArrayBuffer` instance is provided,\n * binary encoding will be used and the message will be sent with the binary\n * opcode.\n *\n * *Note*: binary messages are only supported on the WebSocket transport.\n *\n * ## Duplicate Join Subscriptions\n *\n * While the client may join any number of topics on any number of channels,\n * the client may only hold a single subscription for each unique topic at any\n * given time. When attempting to create a duplicate subscription,\n * the server will close the existing channel, log a warning, and\n * spawn a new channel for the topic. The client will have their\n * `channel.onClose` callbacks fired for the existing channel, and the new\n * channel join will have its receive hooks processed as normal.\n *\n * ## Pushing Messages\n *\n * From the previous example, we can see that pushing messages to the server\n * can be done with `channel.push(eventName, payload)` and we can optionally\n * receive responses from the push. Additionally, we can use\n * `receive(\"timeout\", callback)` to abort waiting for our other `receive` hooks\n *  and take action after some period of waiting. The default timeout is 10000ms.\n *\n *\n * ## Socket Hooks\n *\n * Lifecycle events of the multiplexed connection can be hooked into via\n * `socket.onError()` and `socket.onClose()` events, ie:\n *\n * ```javascript\n * socket.onError( () => console.log(\"there was an error with the connection!\") )\n * socket.onClose( () => console.log(\"the connection dropped\") )\n * ```\n *\n *\n * ## Channel Hooks\n *\n * For each joined channel, you can bind to `onError` and `onClose` events\n * to monitor the channel lifecycle, ie:\n *\n * ```javascript\n * channel.onError( () => console.log(\"there was an error!\") )\n * channel.onClose( () => console.log(\"the channel has gone away gracefully\") )\n * ```\n *\n * ### onError hooks\n *\n * `onError` hooks are invoked if the socket connection drops, or the channel\n * crashes on the server. In either case, a channel rejoin is attempted\n * automatically in an exponential backoff manner.\n *\n * ### onClose hooks\n *\n * `onClose` hooks are invoked only in two cases. 1) the channel explicitly\n * closed on the server, or 2). The client explicitly closed, by calling\n * `channel.leave()`\n *\n *\n * ## Presence\n *\n * The `Presence` object provides features for syncing presence information\n * from the server with the client and handling presences joining and leaving.\n *\n * ### Syncing state from the server\n *\n * To sync presence state from the server, first instantiate an object and\n * pass your channel in to track lifecycle events:\n *\n * ```javascript\n * let channel = socket.channel(\"some:topic\")\n * let presence = new Presence(channel)\n * ```\n *\n * Next, use the `presence.onSync` callback to react to state changes\n * from the server. For example, to render the list of users every time\n * the list changes, you could write:\n *\n * ```javascript\n * presence.onSync(() => {\n *   myRenderUsersFunction(presence.list())\n * })\n * ```\n *\n * ### Listing Presences\n *\n * `presence.list` is used to return a list of presence information\n * based on the local state of metadata. By default, all presence\n * metadata is returned, but a `listBy` function can be supplied to\n * allow the client to select which metadata to use for a given presence.\n * For example, you may have a user online from different devices with\n * a metadata status of \"online\", but they have set themselves to \"away\"\n * on another device. In this case, the app may choose to use the \"away\"\n * status for what appears on the UI. The example below defines a `listBy`\n * function which prioritizes the first metadata which was registered for\n * each user. This could be the first tab they opened, or the first device\n * they came online from:\n *\n * ```javascript\n * let listBy = (id, {metas: [first, ...rest]}) => {\n *   first.count = rest.length + 1 // count of this user's presences\n *   first.id = id\n *   return first\n * }\n * let onlineUsers = presence.list(listBy)\n * ```\n *\n * ### Handling individual presence join and leave events\n *\n * The `presence.onJoin` and `presence.onLeave` callbacks can be used to\n * react to individual presences joining and leaving the app. For example:\n *\n * ```javascript\n * let presence = new Presence(channel)\n *\n * // detect if user has joined for the 1st time or from another tab/device\n * presence.onJoin((id, current, newPres) => {\n *   if(!current){\n *     console.log(\"user has entered for the first time\", newPres)\n *   } else {\n *     console.log(\"user additional presence\", newPres)\n *   }\n * })\n *\n * // detect if user has left from all tabs/devices, or is still present\n * presence.onLeave((id, current, leftPres) => {\n *   if(current.metas.length === 0){\n *     console.log(\"user has left from all devices\", leftPres)\n *   } else {\n *     console.log(\"user left from a device\", leftPres)\n *   }\n * })\n * // receive presence data from server\n * presence.onSync(() => {\n *   displayUsers(presence.list())\n * })\n * ```\n * @module phoenix\n */\n\nimport Channel from \"./channel\"\nimport LongPoll from \"./longpoll\"\nimport Presence from \"./presence\"\nimport Serializer from \"./serializer\"\nimport Socket from \"./socket\"\n\nexport {\n  Channel,\n  LongPoll,\n  Presence,\n  Serializer,\n  Socket\n}\n", "// wraps value in closure or returns closure\nexport let closure = (value) => {\n  if(typeof value === \"function\"){\n    return value\n  } else {\n    let closure = function (){ return value }\n    return closure\n  }\n}\n", "export const globalSelf = typeof self !== \"undefined\" ? self : null\nexport const phxWindow = typeof window !== \"undefined\" ? window : null\nexport const global = globalSelf || phxWindow || global\nexport const DEFAULT_VSN = \"2.0.0\"\nexport const SOCKET_STATES = {connecting: 0, open: 1, closing: 2, closed: 3}\nexport const DEFAULT_TIMEOUT = 10000\nexport const WS_CLOSE_NORMAL = 1000\nexport const CHANNEL_STATES = {\n  closed: \"closed\",\n  errored: \"errored\",\n  joined: \"joined\",\n  joining: \"joining\",\n  leaving: \"leaving\",\n}\nexport const CHANNEL_EVENTS = {\n  close: \"phx_close\",\n  error: \"phx_error\",\n  join: \"phx_join\",\n  reply: \"phx_reply\",\n  leave: \"phx_leave\"\n}\n\nexport const TRANSPORTS = {\n  longpoll: \"longpoll\",\n  websocket: \"websocket\"\n}\nexport const XHR_STATES = {\n  complete: 4\n}\n", "/**\n * Initializes the Push\n * @param {Channel} channel - The Channel\n * @param {string} event - The event, for example `\"phx_join\"`\n * @param {Object} payload - The payload, for example `{user_id: 123}`\n * @param {number} timeout - The push timeout in milliseconds\n */\nexport default class Push {\n  constructor(channel, event, payload, timeout){\n    this.channel = channel\n    this.event = event\n    this.payload = payload || function (){ return {} }\n    this.receivedResp = null\n    this.timeout = timeout\n    this.timeoutTimer = null\n    this.recHooks = []\n    this.sent = false\n  }\n\n  /**\n   *\n   * @param {number} timeout\n   */\n  resend(timeout){\n    this.timeout = timeout\n    this.reset()\n    this.send()\n  }\n\n  /**\n   *\n   */\n  send(){\n    if(this.hasReceived(\"timeout\")){ return }\n    this.startTimeout()\n    this.sent = true\n    this.channel.socket.push({\n      topic: this.channel.topic,\n      event: this.event,\n      payload: this.payload(),\n      ref: this.ref,\n      join_ref: this.channel.joinRef()\n    })\n  }\n\n  /**\n   *\n   * @param {*} status\n   * @param {*} callback\n   */\n  receive(status, callback){\n    if(this.hasReceived(status)){\n      callback(this.receivedResp.response)\n    }\n\n    this.recHooks.push({status, callback})\n    return this\n  }\n\n  /**\n   * @private\n   */\n  reset(){\n    this.cancelRefEvent()\n    this.ref = null\n    this.refEvent = null\n    this.receivedResp = null\n    this.sent = false\n  }\n\n  /**\n   * @private\n   */\n  matchReceive({status, response, _ref}){\n    this.recHooks.filter(h => h.status === status)\n      .forEach(h => h.callback(response))\n  }\n\n  /**\n   * @private\n   */\n  cancelRefEvent(){\n    if(!this.refEvent){ return }\n    this.channel.off(this.refEvent)\n  }\n\n  /**\n   * @private\n   */\n  cancelTimeout(){\n    clearTimeout(this.timeoutTimer)\n    this.timeoutTimer = null\n  }\n\n  /**\n   * @private\n   */\n  startTimeout(){\n    if(this.timeoutTimer){ this.cancelTimeout() }\n    this.ref = this.channel.socket.makeRef()\n    this.refEvent = this.channel.replyEventName(this.ref)\n\n    this.channel.on(this.refEvent, payload => {\n      this.cancelRefEvent()\n      this.cancelTimeout()\n      this.receivedResp = payload\n      this.matchReceive(payload)\n    })\n\n    this.timeoutTimer = setTimeout(() => {\n      this.trigger(\"timeout\", {})\n    }, this.timeout)\n  }\n\n  /**\n   * @private\n   */\n  hasReceived(status){\n    return this.receivedResp && this.receivedResp.status === status\n  }\n\n  /**\n   * @private\n   */\n  trigger(status, response){\n    this.channel.trigger(this.refEvent, {status, response})\n  }\n}\n", "/**\n *\n * Creates a timer that accepts a `timerCalc` function to perform\n * calculated timeout retries, such as exponential backoff.\n *\n * @example\n * let reconnectTimer = new Timer(() => this.connect(), function(tries){\n *   return [1000, 5000, 10000][tries - 1] || 10000\n * })\n * reconnectTimer.scheduleTimeout() // fires after 1000\n * reconnectTimer.scheduleTimeout() // fires after 5000\n * reconnectTimer.reset()\n * reconnectTimer.scheduleTimeout() // fires after 1000\n *\n * @param {Function} callback\n * @param {Function} timerCalc\n */\nexport default class Timer {\n  constructor(callback, timerCalc){\n    this.callback = callback\n    this.timerCalc = timerCalc\n    this.timer = null\n    this.tries = 0\n  }\n\n  reset(){\n    this.tries = 0\n    clearTimeout(this.timer)\n  }\n\n  /**\n   * Cancels any previous scheduleTimeout and schedules callback\n   */\n  scheduleTimeout(){\n    clearTimeout(this.timer)\n\n    this.timer = setTimeout(() => {\n      this.tries = this.tries + 1\n      this.callback()\n    }, this.timerCalc(this.tries + 1))\n  }\n}\n", "import {closure} from \"./utils\"\nimport {\n  CHANNEL_EVENTS,\n  CHANNEL_STATES,\n} from \"./constants\"\n\nimport Push from \"./push\"\nimport Timer from \"./timer\"\n\n/**\n *\n * @param {string} topic\n * @param {(Object|function)} params\n * @param {Socket} socket\n */\nexport default class Channel {\n  constructor(topic, params, socket){\n    this.state = CHANNEL_STATES.closed\n    this.topic = topic\n    this.params = closure(params || {})\n    this.socket = socket\n    this.bindings = []\n    this.bindingRef = 0\n    this.timeout = this.socket.timeout\n    this.joinedOnce = false\n    this.joinPush = new Push(this, CHANNEL_EVENTS.join, this.params, this.timeout)\n    this.pushBuffer = []\n    this.stateChangeRefs = []\n\n    this.rejoinTimer = new Timer(() => {\n      if(this.socket.isConnected()){ this.rejoin() }\n    }, this.socket.rejoinAfterMs)\n    this.stateChangeRefs.push(this.socket.onError(() => this.rejoinTimer.reset()))\n    this.stateChangeRefs.push(this.socket.onOpen(() => {\n      this.rejoinTimer.reset()\n      if(this.isErrored()){ this.rejoin() }\n    })\n    )\n    this.joinPush.receive(\"ok\", () => {\n      this.state = CHANNEL_STATES.joined\n      this.rejoinTimer.reset()\n      this.pushBuffer.forEach(pushEvent => pushEvent.send())\n      this.pushBuffer = []\n    })\n    this.joinPush.receive(\"error\", () => {\n      this.state = CHANNEL_STATES.errored\n      if(this.socket.isConnected()){ this.rejoinTimer.scheduleTimeout() }\n    })\n    this.onClose(() => {\n      this.rejoinTimer.reset()\n      if(this.socket.hasLogger()) this.socket.log(\"channel\", `close ${this.topic} ${this.joinRef()}`)\n      this.state = CHANNEL_STATES.closed\n      this.socket.remove(this)\n    })\n    this.onError(reason => {\n      if(this.socket.hasLogger()) this.socket.log(\"channel\", `error ${this.topic}`, reason)\n      if(this.isJoining()){ this.joinPush.reset() }\n      this.state = CHANNEL_STATES.errored\n      if(this.socket.isConnected()){ this.rejoinTimer.scheduleTimeout() }\n    })\n    this.joinPush.receive(\"timeout\", () => {\n      if(this.socket.hasLogger()) this.socket.log(\"channel\", `timeout ${this.topic} (${this.joinRef()})`, this.joinPush.timeout)\n      let leavePush = new Push(this, CHANNEL_EVENTS.leave, closure({}), this.timeout)\n      leavePush.send()\n      this.state = CHANNEL_STATES.errored\n      this.joinPush.reset()\n      if(this.socket.isConnected()){ this.rejoinTimer.scheduleTimeout() }\n    })\n    this.on(CHANNEL_EVENTS.reply, (payload, ref) => {\n      this.trigger(this.replyEventName(ref), payload)\n    })\n  }\n\n  /**\n   * Join the channel\n   * @param {integer} timeout\n   * @returns {Push}\n   */\n  join(timeout = this.timeout){\n    if(this.joinedOnce){\n      throw new Error(\"tried to join multiple times. 'join' can only be called a single time per channel instance\")\n    } else {\n      this.timeout = timeout\n      this.joinedOnce = true\n      this.rejoin()\n      return this.joinPush\n    }\n  }\n\n  /**\n   * Hook into channel close\n   * @param {Function} callback\n   */\n  onClose(callback){\n    this.on(CHANNEL_EVENTS.close, callback)\n  }\n\n  /**\n   * Hook into channel errors\n   * @param {Function} callback\n   */\n  onError(callback){\n    return this.on(CHANNEL_EVENTS.error, reason => callback(reason))\n  }\n\n  /**\n   * Subscribes on channel events\n   *\n   * Subscription returns a ref counter, which can be used later to\n   * unsubscribe the exact event listener\n   *\n   * @example\n   * const ref1 = channel.on(\"event\", do_stuff)\n   * const ref2 = channel.on(\"event\", do_other_stuff)\n   * channel.off(\"event\", ref1)\n   * // Since unsubscription, do_stuff won't fire,\n   * // while do_other_stuff will keep firing on the \"event\"\n   *\n   * @param {string} event\n   * @param {Function} callback\n   * @returns {integer} ref\n   */\n  on(event, callback){\n    let ref = this.bindingRef++\n    this.bindings.push({event, ref, callback})\n    return ref\n  }\n\n  /**\n   * Unsubscribes off of channel events\n   *\n   * Use the ref returned from a channel.on() to unsubscribe one\n   * handler, or pass nothing for the ref to unsubscribe all\n   * handlers for the given event.\n   *\n   * @example\n   * // Unsubscribe the do_stuff handler\n   * const ref1 = channel.on(\"event\", do_stuff)\n   * channel.off(\"event\", ref1)\n   *\n   * // Unsubscribe all handlers from event\n   * channel.off(\"event\")\n   *\n   * @param {string} event\n   * @param {integer} ref\n   */\n  off(event, ref){\n    this.bindings = this.bindings.filter((bind) => {\n      return !(bind.event === event && (typeof ref === \"undefined\" || ref === bind.ref))\n    })\n  }\n\n  /**\n   * @private\n   */\n  canPush(){ return this.socket.isConnected() && this.isJoined() }\n\n  /**\n   * Sends a message `event` to phoenix with the payload `payload`.\n   * Phoenix receives this in the `handle_in(event, payload, socket)`\n   * function. if phoenix replies or it times out (default 10000ms),\n   * then optionally the reply can be received.\n   *\n   * @example\n   * channel.push(\"event\")\n   *   .receive(\"ok\", payload => console.log(\"phoenix replied:\", payload))\n   *   .receive(\"error\", err => console.log(\"phoenix errored\", err))\n   *   .receive(\"timeout\", () => console.log(\"timed out pushing\"))\n   * @param {string} event\n   * @param {Object} payload\n   * @param {number} [timeout]\n   * @returns {Push}\n   */\n  push(event, payload, timeout = this.timeout){\n    payload = payload || {}\n    if(!this.joinedOnce){\n      throw new Error(`tried to push '${event}' to '${this.topic}' before joining. Use channel.join() before pushing events`)\n    }\n    let pushEvent = new Push(this, event, function (){ return payload }, timeout)\n    if(this.canPush()){\n      pushEvent.send()\n    } else {\n      pushEvent.startTimeout()\n      this.pushBuffer.push(pushEvent)\n    }\n\n    return pushEvent\n  }\n\n  /** Leaves the channel\n   *\n   * Unsubscribes from server events, and\n   * instructs channel to terminate on server\n   *\n   * Triggers onClose() hooks\n   *\n   * To receive leave acknowledgements, use the `receive`\n   * hook to bind to the server ack, ie:\n   *\n   * @example\n   * channel.leave().receive(\"ok\", () => alert(\"left!\") )\n   *\n   * @param {integer} timeout\n   * @returns {Push}\n   */\n  leave(timeout = this.timeout){\n    this.rejoinTimer.reset()\n    this.joinPush.cancelTimeout()\n\n    this.state = CHANNEL_STATES.leaving\n    let onClose = () => {\n      if(this.socket.hasLogger()) this.socket.log(\"channel\", `leave ${this.topic}`)\n      this.trigger(CHANNEL_EVENTS.close, \"leave\")\n    }\n    let leavePush = new Push(this, CHANNEL_EVENTS.leave, closure({}), timeout)\n    leavePush.receive(\"ok\", () => onClose())\n      .receive(\"timeout\", () => onClose())\n    leavePush.send()\n    if(!this.canPush()){ leavePush.trigger(\"ok\", {}) }\n\n    return leavePush\n  }\n\n  /**\n   * Overridable message hook\n   *\n   * Receives all events for specialized message handling\n   * before dispatching to the channel callbacks.\n   *\n   * Must return the payload, modified or unmodified\n   * @param {string} event\n   * @param {Object} payload\n   * @param {integer} ref\n   * @returns {Object}\n   */\n  onMessage(_event, payload, _ref){ return payload }\n\n  /**\n   * @private\n   */\n  isMember(topic, event, payload, joinRef){\n    if(this.topic !== topic){ return false }\n\n    if(joinRef && joinRef !== this.joinRef()){\n      if(this.socket.hasLogger()) this.socket.log(\"channel\", \"dropping outdated message\", {topic, event, payload, joinRef})\n      return false\n    } else {\n      return true\n    }\n  }\n\n  /**\n   * @private\n   */\n  joinRef(){ return this.joinPush.ref }\n\n  /**\n   * @private\n   */\n  rejoin(timeout = this.timeout){\n    if(this.isLeaving()){ return }\n    this.socket.leaveOpenTopic(this.topic)\n    this.state = CHANNEL_STATES.joining\n    this.joinPush.resend(timeout)\n  }\n\n  /**\n   * @private\n   */\n  trigger(event, payload, ref, joinRef){\n    let handledPayload = this.onMessage(event, payload, ref, joinRef)\n    if(payload && !handledPayload){ throw new Error(\"channel onMessage callbacks must return the payload, modified or unmodified\") }\n\n    let eventBindings = this.bindings.filter(bind => bind.event === event)\n\n    for(let i = 0; i < eventBindings.length; i++){\n      let bind = eventBindings[i]\n      bind.callback(handledPayload, ref, joinRef || this.joinRef())\n    }\n  }\n\n  /**\n   * @private\n   */\n  replyEventName(ref){ return `chan_reply_${ref}` }\n\n  /**\n   * @private\n   */\n  isClosed(){ return this.state === CHANNEL_STATES.closed }\n\n  /**\n   * @private\n   */\n  isErrored(){ return this.state === CHANNEL_STATES.errored }\n\n  /**\n   * @private\n   */\n  isJoined(){ return this.state === CHANNEL_STATES.joined }\n\n  /**\n   * @private\n   */\n  isJoining(){ return this.state === CHANNEL_STATES.joining }\n\n  /**\n   * @private\n   */\n  isLeaving(){ return this.state === CHANNEL_STATES.leaving }\n}\n", "import {\n  global,\n  XHR_STATES\n} from \"./constants\"\n\nexport default class Ajax {\n\n  static request(method, endPoint, accept, body, timeout, ontimeout, callback){\n    if(global.XDomainRequest){\n      let req = new global.XDomainRequest() // IE8, IE9\n      return this.xdomainRequest(req, method, endPoint, body, timeout, ontimeout, callback)\n    } else {\n      let req = new global.XMLHttpRequest() // IE7+, Firefox, Chrome, Opera, Safari\n      return this.xhrRequest(req, method, endPoint, accept, body, timeout, ontimeout, callback)\n    }\n  }\n\n  static xdomainRequest(req, method, endPoint, body, timeout, ontimeout, callback){\n    req.timeout = timeout\n    req.open(method, endPoint)\n    req.onload = () => {\n      let response = this.parseJSON(req.responseText)\n      callback && callback(response)\n    }\n    if(ontimeout){ req.ontimeout = ontimeout }\n\n    // Work around bug in IE9 that requires an attached onprogress handler\n    req.onprogress = () => { }\n\n    req.send(body)\n    return req\n  }\n\n  static xhrRequest(req, method, endPoint, accept, body, timeout, ontimeout, callback){\n    req.open(method, endPoint, true)\n    req.timeout = timeout\n    req.setRequestHeader(\"Content-Type\", accept)\n    req.onerror = () => callback && callback(null)\n    req.onreadystatechange = () => {\n      if(req.readyState === XHR_STATES.complete && callback){\n        let response = this.parseJSON(req.responseText)\n        callback(response)\n      }\n    }\n    if(ontimeout){ req.ontimeout = ontimeout }\n\n    req.send(body)\n    return req\n  }\n\n  static parseJSON(resp){\n    if(!resp || resp === \"\"){ return null }\n\n    try {\n      return JSON.parse(resp)\n    } catch (e){\n      console && console.log(\"failed to parse JSON response\", resp)\n      return null\n    }\n  }\n\n  static serialize(obj, parentKey){\n    let queryStr = []\n    for(var key in obj){\n      if(!Object.prototype.hasOwnProperty.call(obj, key)){ continue }\n      let paramKey = parentKey ? `${parentKey}[${key}]` : key\n      let paramVal = obj[key]\n      if(typeof paramVal === \"object\"){\n        queryStr.push(this.serialize(paramVal, paramKey))\n      } else {\n        queryStr.push(encodeURIComponent(paramKey) + \"=\" + encodeURIComponent(paramVal))\n      }\n    }\n    return queryStr.join(\"&\")\n  }\n\n  static appendParams(url, params){\n    if(Object.keys(params).length === 0){ return url }\n\n    let prefix = url.match(/\\?/) ? \"&\" : \"?\"\n    return `${url}${prefix}${this.serialize(params)}`\n  }\n}\n", "import {\n  SOCKET_STATES,\n  TRANSPORTS\n} from \"./constants\"\n\nimport Ajax from \"./ajax\"\n\nlet arrayBufferToBase64 = (buffer) => {\n  let binary = \"\"\n  let bytes = new Uint8Array(buffer)\n  let len = bytes.byteLength\n  for(let i = 0; i < len; i++){ binary += String.fromCharCode(bytes[i]) }\n  return btoa(binary)\n}\n\nexport default class LongPoll {\n\n  constructor(endPoint){\n    this.endPoint = null\n    this.token = null\n    this.skipHeartbeat = true\n    this.reqs = new Set()\n    this.awaitingBatchAck = false\n    this.currentBatch = null\n    this.currentBatchTimer = null\n    this.batchBuffer = []\n    this.onopen = function (){ } // noop\n    this.onerror = function (){ } // noop\n    this.onmessage = function (){ } // noop\n    this.onclose = function (){ } // noop\n    this.pollEndpoint = this.normalizeEndpoint(endPoint)\n    this.readyState = SOCKET_STATES.connecting\n    // we must wait for the caller to finish setting up our callbacks and timeout properties\n    setTimeout(() => this.poll(), 0)\n  }\n\n  normalizeEndpoint(endPoint){\n    return (endPoint\n      .replace(\"ws://\", \"http://\")\n      .replace(\"wss://\", \"https://\")\n      .replace(new RegExp(\"(.*)\\/\" + TRANSPORTS.websocket), \"$1/\" + TRANSPORTS.longpoll))\n  }\n\n  endpointURL(){\n    return Ajax.appendParams(this.pollEndpoint, {token: this.token})\n  }\n\n  closeAndRetry(code, reason, wasClean){\n    this.close(code, reason, wasClean)\n    this.readyState = SOCKET_STATES.connecting\n  }\n\n  ontimeout(){\n    this.onerror(\"timeout\")\n    this.closeAndRetry(1005, \"timeout\", false)\n  }\n\n  isActive(){ return this.readyState === SOCKET_STATES.open || this.readyState === SOCKET_STATES.connecting }\n\n  poll(){\n    this.ajax(\"GET\", \"application/json\", null, () => this.ontimeout(), resp => {\n      if(resp){\n        var {status, token, messages} = resp\n        this.token = token\n      } else {\n        status = 0\n      }\n\n      switch(status){\n        case 200:\n          messages.forEach(msg => {\n            // Tasks are what things like event handlers, setTimeout callbacks,\n            // promise resolves and more are run within.\n            // In modern browsers, there are two different kinds of tasks,\n            // microtasks and macrotasks.\n            // Microtasks are mainly used for Promises, while macrotasks are\n            // used for everything else.\n            // Microtasks always have priority over macrotasks. If the JS engine\n            // is looking for a task to run, it will always try to empty the\n            // microtask queue before attempting to run anything from the\n            // macrotask queue.\n            //\n            // For the WebSocket transport, messages always arrive in their own\n            // event. This means that if any promises are resolved from within,\n            // their callbacks will always finish execution by the time the\n            // next message event handler is run.\n            //\n            // In order to emulate this behaviour, we need to make sure each\n            // onmessage handler is run within its own macrotask.\n            setTimeout(() => this.onmessage({data: msg}), 0)\n          })\n          this.poll()\n          break\n        case 204:\n          this.poll()\n          break\n        case 410:\n          this.readyState = SOCKET_STATES.open\n          this.onopen({})\n          this.poll()\n          break\n        case 403:\n          this.onerror(403)\n          this.close(1008, \"forbidden\", false)\n          break\n        case 0:\n        case 500:\n          this.onerror(500)\n          this.closeAndRetry(1011, \"internal server error\", 500)\n          break\n        default: throw new Error(`unhandled poll status ${status}`)\n      }\n    })\n  }\n\n  // we collect all pushes within the current event loop by\n  // setTimeout 0, which optimizes back-to-back procedural\n  // pushes against an empty buffer\n\n  send(body){\n    if(typeof(body) !== \"string\"){ body = arrayBufferToBase64(body) }\n    if(this.currentBatch){\n      this.currentBatch.push(body)\n    } else if(this.awaitingBatchAck){\n      this.batchBuffer.push(body)\n    } else {\n      this.currentBatch = [body]\n      this.currentBatchTimer = setTimeout(() => {\n        this.batchSend(this.currentBatch)\n        this.currentBatch = null\n      }, 0)\n    }\n  }\n\n  batchSend(messages){\n    this.awaitingBatchAck = true\n    this.ajax(\"POST\", \"application/x-ndjson\", messages.join(\"\\n\"), () => this.onerror(\"timeout\"), resp => {\n      this.awaitingBatchAck = false\n      if(!resp || resp.status !== 200){\n        this.onerror(resp && resp.status)\n        this.closeAndRetry(1011, \"internal server error\", false)\n      } else if(this.batchBuffer.length > 0){\n        this.batchSend(this.batchBuffer)\n        this.batchBuffer = []\n      }\n    })\n  }\n\n  close(code, reason, wasClean){\n    for(let req of this.reqs){ req.abort() }\n    this.readyState = SOCKET_STATES.closed\n    let opts = Object.assign({code: 1000, reason: undefined, wasClean: true}, {code, reason, wasClean})\n    this.batchBuffer = []\n    clearTimeout(this.currentBatchTimer)\n    this.currentBatchTimer = null\n    if(typeof(CloseEvent) !== \"undefined\"){\n      this.onclose(new CloseEvent(\"close\", opts))\n    } else {\n      this.onclose(opts)\n    }\n  }\n\n  ajax(method, contentType, body, onCallerTimeout, callback){\n    let req\n    let ontimeout = () => {\n      this.reqs.delete(req)\n      onCallerTimeout()\n    }\n    req = Ajax.request(method, this.endpointURL(), contentType, body, this.timeout, ontimeout, resp => {\n      this.reqs.delete(req)\n      if(this.isActive()){ callback(resp) }\n    })\n    this.reqs.add(req)\n  }\n}\n", "/**\n * Initializes the Presence\n * @param {Channel} channel - The Channel\n * @param {Object} opts - The options,\n *        for example `{events: {state: \"state\", diff: \"diff\"}}`\n */\nexport default class Presence {\n\n  constructor(channel, opts = {}){\n    let events = opts.events || {state: \"presence_state\", diff: \"presence_diff\"}\n    this.state = {}\n    this.pendingDiffs = []\n    this.channel = channel\n    this.joinRef = null\n    this.caller = {\n      onJoin: function (){ },\n      onLeave: function (){ },\n      onSync: function (){ }\n    }\n\n    this.channel.on(events.state, newState => {\n      let {onJoin, onLeave, onSync} = this.caller\n\n      this.joinRef = this.channel.joinRef()\n      this.state = Presence.syncState(this.state, newState, onJoin, onLeave)\n\n      this.pendingDiffs.forEach(diff => {\n        this.state = Presence.syncDiff(this.state, diff, onJoin, onLeave)\n      })\n      this.pendingDiffs = []\n      onSync()\n    })\n\n    this.channel.on(events.diff, diff => {\n      let {onJoin, onLeave, onSync} = this.caller\n\n      if(this.inPendingSyncState()){\n        this.pendingDiffs.push(diff)\n      } else {\n        this.state = Presence.syncDiff(this.state, diff, onJoin, onLeave)\n        onSync()\n      }\n    })\n  }\n\n  onJoin(callback){ this.caller.onJoin = callback }\n\n  onLeave(callback){ this.caller.onLeave = callback }\n\n  onSync(callback){ this.caller.onSync = callback }\n\n  list(by){ return Presence.list(this.state, by) }\n\n  inPendingSyncState(){\n    return !this.joinRef || (this.joinRef !== this.channel.joinRef())\n  }\n\n  // lower-level public static API\n\n  /**\n   * Used to sync the list of presences on the server\n   * with the client's state. An optional `onJoin` and `onLeave` callback can\n   * be provided to react to changes in the client's local presences across\n   * disconnects and reconnects with the server.\n   *\n   * @returns {Presence}\n   */\n  static syncState(currentState, newState, onJoin, onLeave){\n    let state = this.clone(currentState)\n    let joins = {}\n    let leaves = {}\n\n    this.map(state, (key, presence) => {\n      if(!newState[key]){\n        leaves[key] = presence\n      }\n    })\n    this.map(newState, (key, newPresence) => {\n      let currentPresence = state[key]\n      if(currentPresence){\n        let newRefs = newPresence.metas.map(m => m.phx_ref)\n        let curRefs = currentPresence.metas.map(m => m.phx_ref)\n        let joinedMetas = newPresence.metas.filter(m => curRefs.indexOf(m.phx_ref) < 0)\n        let leftMetas = currentPresence.metas.filter(m => newRefs.indexOf(m.phx_ref) < 0)\n        if(joinedMetas.length > 0){\n          joins[key] = newPresence\n          joins[key].metas = joinedMetas\n        }\n        if(leftMetas.length > 0){\n          leaves[key] = this.clone(currentPresence)\n          leaves[key].metas = leftMetas\n        }\n      } else {\n        joins[key] = newPresence\n      }\n    })\n    return this.syncDiff(state, {joins: joins, leaves: leaves}, onJoin, onLeave)\n  }\n\n  /**\n   *\n   * Used to sync a diff of presence join and leave\n   * events from the server, as they happen. Like `syncState`, `syncDiff`\n   * accepts optional `onJoin` and `onLeave` callbacks to react to a user\n   * joining or leaving from a device.\n   *\n   * @returns {Presence}\n   */\n  static syncDiff(state, diff, onJoin, onLeave){\n    let {joins, leaves} = this.clone(diff)\n    if(!onJoin){ onJoin = function (){ } }\n    if(!onLeave){ onLeave = function (){ } }\n\n    this.map(joins, (key, newPresence) => {\n      let currentPresence = state[key]\n      state[key] = this.clone(newPresence)\n      if(currentPresence){\n        let joinedRefs = state[key].metas.map(m => m.phx_ref)\n        let curMetas = currentPresence.metas.filter(m => joinedRefs.indexOf(m.phx_ref) < 0)\n        state[key].metas.unshift(...curMetas)\n      }\n      onJoin(key, currentPresence, newPresence)\n    })\n    this.map(leaves, (key, leftPresence) => {\n      let currentPresence = state[key]\n      if(!currentPresence){ return }\n      let refsToRemove = leftPresence.metas.map(m => m.phx_ref)\n      currentPresence.metas = currentPresence.metas.filter(p => {\n        return refsToRemove.indexOf(p.phx_ref) < 0\n      })\n      onLeave(key, currentPresence, leftPresence)\n      if(currentPresence.metas.length === 0){\n        delete state[key]\n      }\n    })\n    return state\n  }\n\n  /**\n   * Returns the array of presences, with selected metadata.\n   *\n   * @param {Object} presences\n   * @param {Function} chooser\n   *\n   * @returns {Presence}\n   */\n  static list(presences, chooser){\n    if(!chooser){ chooser = function (key, pres){ return pres } }\n\n    return this.map(presences, (key, presence) => {\n      return chooser(key, presence)\n    })\n  }\n\n  // private\n\n  static map(obj, func){\n    return Object.getOwnPropertyNames(obj).map(key => func(key, obj[key]))\n  }\n\n  static clone(obj){ return JSON.parse(JSON.stringify(obj)) }\n}\n", "/* The default serializer for encoding and decoding messages */\nimport {\n  CHANNEL_EVENTS\n} from \"./constants\"\n\nexport default {\n  HEADER_LENGTH: 1,\n  META_LENGTH: 4,\n  KINDS: {push: 0, reply: 1, broadcast: 2},\n\n  encode(msg, callback){\n    if(msg.payload.constructor === ArrayBuffer){\n      return callback(this.binaryEncode(msg))\n    } else {\n      let payload = [msg.join_ref, msg.ref, msg.topic, msg.event, msg.payload]\n      return callback(JSON.stringify(payload))\n    }\n  },\n\n  decode(rawPayload, callback){\n    if(rawPayload.constructor === ArrayBuffer){\n      return callback(this.binaryDecode(rawPayload))\n    } else {\n      let [join_ref, ref, topic, event, payload] = JSON.parse(rawPayload)\n      return callback({join_ref, ref, topic, event, payload})\n    }\n  },\n\n  // private\n\n  binaryEncode(message){\n    let {join_ref, ref, event, topic, payload} = message\n    let metaLength = this.META_LENGTH + join_ref.length + ref.length + topic.length + event.length\n    let header = new ArrayBuffer(this.HEADER_LENGTH + metaLength)\n    let view = new DataView(header)\n    let offset = 0\n\n    view.setUint8(offset++, this.KINDS.push) // kind\n    view.setUint8(offset++, join_ref.length)\n    view.setUint8(offset++, ref.length)\n    view.setUint8(offset++, topic.length)\n    view.setUint8(offset++, event.length)\n    Array.from(join_ref, char => view.setUint8(offset++, char.charCodeAt(0)))\n    Array.from(ref, char => view.setUint8(offset++, char.charCodeAt(0)))\n    Array.from(topic, char => view.setUint8(offset++, char.charCodeAt(0)))\n    Array.from(event, char => view.setUint8(offset++, char.charCodeAt(0)))\n\n    var combined = new Uint8Array(header.byteLength + payload.byteLength)\n    combined.set(new Uint8Array(header), 0)\n    combined.set(new Uint8Array(payload), header.byteLength)\n\n    return combined.buffer\n  },\n\n  binaryDecode(buffer){\n    let view = new DataView(buffer)\n    let kind = view.getUint8(0)\n    let decoder = new TextDecoder()\n    switch(kind){\n      case this.KINDS.push: return this.decodePush(buffer, view, decoder)\n      case this.KINDS.reply: return this.decodeReply(buffer, view, decoder)\n      case this.KINDS.broadcast: return this.decodeBroadcast(buffer, view, decoder)\n    }\n  },\n\n  decodePush(buffer, view, decoder){\n    let joinRefSize = view.getUint8(1)\n    let topicSize = view.getUint8(2)\n    let eventSize = view.getUint8(3)\n    let offset = this.HEADER_LENGTH + this.META_LENGTH - 1 // pushes have no ref\n    let joinRef = decoder.decode(buffer.slice(offset, offset + joinRefSize))\n    offset = offset + joinRefSize\n    let topic = decoder.decode(buffer.slice(offset, offset + topicSize))\n    offset = offset + topicSize\n    let event = decoder.decode(buffer.slice(offset, offset + eventSize))\n    offset = offset + eventSize\n    let data = buffer.slice(offset, buffer.byteLength)\n    return {join_ref: joinRef, ref: null, topic: topic, event: event, payload: data}\n  },\n\n  decodeReply(buffer, view, decoder){\n    let joinRefSize = view.getUint8(1)\n    let refSize = view.getUint8(2)\n    let topicSize = view.getUint8(3)\n    let eventSize = view.getUint8(4)\n    let offset = this.HEADER_LENGTH + this.META_LENGTH\n    let joinRef = decoder.decode(buffer.slice(offset, offset + joinRefSize))\n    offset = offset + joinRefSize\n    let ref = decoder.decode(buffer.slice(offset, offset + refSize))\n    offset = offset + refSize\n    let topic = decoder.decode(buffer.slice(offset, offset + topicSize))\n    offset = offset + topicSize\n    let event = decoder.decode(buffer.slice(offset, offset + eventSize))\n    offset = offset + eventSize\n    let data = buffer.slice(offset, buffer.byteLength)\n    let payload = {status: event, response: data}\n    return {join_ref: joinRef, ref: ref, topic: topic, event: CHANNEL_EVENTS.reply, payload: payload}\n  },\n\n  decodeBroadcast(buffer, view, decoder){\n    let topicSize = view.getUint8(1)\n    let eventSize = view.getUint8(2)\n    let offset = this.HEADER_LENGTH + 2\n    let topic = decoder.decode(buffer.slice(offset, offset + topicSize))\n    offset = offset + topicSize\n    let event = decoder.decode(buffer.slice(offset, offset + eventSize))\n    offset = offset + eventSize\n    let data = buffer.slice(offset, buffer.byteLength)\n\n    return {join_ref: null, ref: null, topic: topic, event: event, payload: data}\n  }\n}\n", "import {\n  global,\n  phxWindow,\n  CHANNEL_EVENTS,\n  DEFAULT_TIMEOUT,\n  DEFAULT_VSN,\n  SOCKET_STATES,\n  TRANSPORTS,\n  WS_CLOSE_NORMAL\n} from \"./constants\"\n\nimport {\n  closure\n} from \"./utils\"\n\nimport Ajax from \"./ajax\"\nimport Channel from \"./channel\"\nimport LongPoll from \"./longpoll\"\nimport Serializer from \"./serializer\"\nimport Timer from \"./timer\"\n\n/** Initializes the Socket *\n *\n * For IE8 support use an ES5-shim (https://github.com/es-shims/es5-shim)\n *\n * @param {string} endPoint - The string WebSocket endpoint, ie, `\"ws://example.com/socket\"`,\n *                                               `\"wss://example.com\"`\n *                                               `\"/socket\"` (inherited host & protocol)\n * @param {Object} [opts] - Optional configuration\n * @param {Function} [opts.transport] - The Websocket Transport, for example WebSocket or Phoenix.LongPoll.\n *\n * Defaults to WebSocket with automatic LongPoll fallback if WebSocket is not defined.\n * To fallback to LongPoll when WebSocket attempts fail, use `longPollFallbackMs: 2500`.\n *\n * @param {Function} [opts.longPollFallbackMs] - The millisecond time to attempt the primary transport\n * before falling back to the LongPoll transport. Disabled by default.\n *\n * @param {Function} [opts.debug] - When true, enables debug logging. Default false.\n *\n * @param {Function} [opts.encode] - The function to encode outgoing messages.\n *\n * Defaults to JSON encoder.\n *\n * @param {Function} [opts.decode] - The function to decode incoming messages.\n *\n * Defaults to JSON:\n *\n * ```javascript\n * (payload, callback) => callback(JSON.parse(payload))\n * ```\n *\n * @param {number} [opts.timeout] - The default timeout in milliseconds to trigger push timeouts.\n *\n * Defaults `DEFAULT_TIMEOUT`\n * @param {number} [opts.heartbeatIntervalMs] - The millisec interval to send a heartbeat message\n * @param {number} [opts.reconnectAfterMs] - The optional function that returns the millisec\n * socket reconnect interval.\n *\n * Defaults to stepped backoff of:\n *\n * ```javascript\n * function(tries){\n *   return [10, 50, 100, 150, 200, 250, 500, 1000, 2000][tries - 1] || 5000\n * }\n * ````\n *\n * @param {number} [opts.rejoinAfterMs] - The optional function that returns the millisec\n * rejoin interval for individual channels.\n *\n * ```javascript\n * function(tries){\n *   return [1000, 2000, 5000][tries - 1] || 10000\n * }\n * ````\n *\n * @param {Function} [opts.logger] - The optional function for specialized logging, ie:\n *\n * ```javascript\n * function(kind, msg, data) {\n *   console.log(`${kind}: ${msg}`, data)\n * }\n * ```\n *\n * @param {number} [opts.longpollerTimeout] - The maximum timeout of a long poll AJAX request.\n *\n * Defaults to 20s (double the server long poll timer).\n *\n * @param {(Object|function)} [opts.params] - The optional params to pass when connecting\n * @param {string} [opts.binaryType] - The binary type to use for binary WebSocket frames.\n *\n * Defaults to \"arraybuffer\"\n *\n * @param {vsn} [opts.vsn] - The serializer's protocol version to send on connect.\n *\n * Defaults to DEFAULT_VSN.\n *\n * @param {Object} [opts.sessionStorage] - An optional Storage compatible object\n * Phoenix uses sessionStorage for longpoll fallback history. Overriding the store is\n * useful when Phoenix won't have access to `sessionStorage`. For example, This could\n * happen if a site loads a cross-domain channel in an iframe. Example usage:\n *\n *     class InMemoryStorage {\n *       constructor() { this.storage = {} }\n *       getItem(keyName) { return this.storage[keyName] || null }\n *       removeItem(keyName) { delete this.storage[keyName] }\n *       setItem(keyName, keyValue) { this.storage[keyName] = keyValue }\n *     }\n *\n*/\nexport default class Socket {\n  constructor(endPoint, opts = {}){\n    this.stateChangeCallbacks = {open: [], close: [], error: [], message: []}\n    this.channels = []\n    this.sendBuffer = []\n    this.ref = 0\n    this.timeout = opts.timeout || DEFAULT_TIMEOUT\n    this.transport = opts.transport || global.WebSocket || LongPoll\n    this.primaryPassedHealthCheck = false\n    this.longPollFallbackMs = opts.longPollFallbackMs\n    this.fallbackTimer = null\n    this.sessionStore = opts.sessionStorage || global.sessionStorage\n    this.establishedConnections = 0\n    this.defaultEncoder = Serializer.encode.bind(Serializer)\n    this.defaultDecoder = Serializer.decode.bind(Serializer)\n    this.closeWasClean = false\n    this.binaryType = opts.binaryType || \"arraybuffer\"\n    this.connectClock = 1\n    if(this.transport !== LongPoll){\n      this.encode = opts.encode || this.defaultEncoder\n      this.decode = opts.decode || this.defaultDecoder\n    } else {\n      this.encode = this.defaultEncoder\n      this.decode = this.defaultDecoder\n    }\n    let awaitingConnectionOnPageShow = null\n    if(phxWindow && phxWindow.addEventListener){\n      phxWindow.addEventListener(\"pagehide\", _e => {\n        if(this.conn){\n          this.disconnect()\n          awaitingConnectionOnPageShow = this.connectClock\n        }\n      })\n      phxWindow.addEventListener(\"pageshow\", _e => {\n        if(awaitingConnectionOnPageShow === this.connectClock){\n          awaitingConnectionOnPageShow = null\n          this.connect()\n        }\n      })\n    }\n    this.heartbeatIntervalMs = opts.heartbeatIntervalMs || 30000\n    this.rejoinAfterMs = (tries) => {\n      if(opts.rejoinAfterMs){\n        return opts.rejoinAfterMs(tries)\n      } else {\n        return [1000, 2000, 5000][tries - 1] || 10000\n      }\n    }\n    this.reconnectAfterMs = (tries) => {\n      if(opts.reconnectAfterMs){\n        return opts.reconnectAfterMs(tries)\n      } else {\n        return [10, 50, 100, 150, 200, 250, 500, 1000, 2000][tries - 1] || 5000\n      }\n    }\n    this.logger = opts.logger || null\n    if(!this.logger && opts.debug){\n      this.logger = (kind, msg, data) => { console.log(`${kind}: ${msg}`, data) }\n    }\n    this.longpollerTimeout = opts.longpollerTimeout || 20000\n    this.params = closure(opts.params || {})\n    this.endPoint = `${endPoint}/${TRANSPORTS.websocket}`\n    this.vsn = opts.vsn || DEFAULT_VSN\n    this.heartbeatTimeoutTimer = null\n    this.heartbeatTimer = null\n    this.pendingHeartbeatRef = null\n    this.reconnectTimer = new Timer(() => {\n      this.teardown(() => this.connect())\n    }, this.reconnectAfterMs)\n  }\n\n  /**\n   * Returns the LongPoll transport reference\n   */\n  getLongPollTransport(){ return LongPoll }\n\n  /**\n   * Disconnects and replaces the active transport\n   *\n   * @param {Function} newTransport - The new transport class to instantiate\n   *\n   */\n  replaceTransport(newTransport){\n    this.connectClock++\n    this.closeWasClean = true\n    clearTimeout(this.fallbackTimer)\n    this.reconnectTimer.reset()\n    if(this.conn){\n      this.conn.close()\n      this.conn = null\n    }\n    this.transport = newTransport\n  }\n\n  /**\n   * Returns the socket protocol\n   *\n   * @returns {string}\n   */\n  protocol(){ return location.protocol.match(/^https/) ? \"wss\" : \"ws\" }\n\n  /**\n   * The fully qualified socket url\n   *\n   * @returns {string}\n   */\n  endPointURL(){\n    let uri = Ajax.appendParams(\n      Ajax.appendParams(this.endPoint, this.params()), {vsn: this.vsn})\n    if(uri.charAt(0) !== \"/\"){ return uri }\n    if(uri.charAt(1) === \"/\"){ return `${this.protocol()}:${uri}` }\n\n    return `${this.protocol()}://${location.host}${uri}`\n  }\n\n  /**\n   * Disconnects the socket\n   *\n   * See https://developer.mozilla.org/en-US/docs/Web/API/CloseEvent#Status_codes for valid status codes.\n   *\n   * @param {Function} callback - Optional callback which is called after socket is disconnected.\n   * @param {integer} code - A status code for disconnection (Optional).\n   * @param {string} reason - A textual description of the reason to disconnect. (Optional)\n   */\n  disconnect(callback, code, reason){\n    this.connectClock++\n    this.closeWasClean = true\n    clearTimeout(this.fallbackTimer)\n    this.reconnectTimer.reset()\n    this.teardown(callback, code, reason)\n  }\n\n  /**\n   *\n   * @param {Object} params - The params to send when connecting, for example `{user_id: userToken}`\n   *\n   * Passing params to connect is deprecated; pass them in the Socket constructor instead:\n   * `new Socket(\"/socket\", {params: {user_id: userToken}})`.\n   */\n  connect(params){\n    if(params){\n      console && console.log(\"passing params to connect is deprecated. Instead pass :params to the Socket constructor\")\n      this.params = closure(params)\n    }\n    if(this.conn){ return }\n    if(this.longPollFallbackMs && this.transport !== LongPoll){\n      this.connectWithFallback(LongPoll, this.longPollFallbackMs)\n    } else {\n      this.transportConnect()\n    }\n  }\n\n  /**\n   * Logs the message. Override `this.logger` for specialized logging. noops by default\n   * @param {string} kind\n   * @param {string} msg\n   * @param {Object} data\n   */\n  log(kind, msg, data){ this.logger && this.logger(kind, msg, data) }\n\n  /**\n   * Returns true if a logger has been set on this socket.\n   */\n  hasLogger(){ return this.logger !== null }\n\n  /**\n   * Registers callbacks for connection open events\n   *\n   * @example socket.onOpen(function(){ console.info(\"the socket was opened\") })\n   *\n   * @param {Function} callback\n   */\n  onOpen(callback){\n    let ref = this.makeRef()\n    this.stateChangeCallbacks.open.push([ref, callback])\n    return ref\n  }\n\n  /**\n   * Registers callbacks for connection close events\n   * @param {Function} callback\n   */\n  onClose(callback){\n    let ref = this.makeRef()\n    this.stateChangeCallbacks.close.push([ref, callback])\n    return ref\n  }\n\n  /**\n   * Registers callbacks for connection error events\n   *\n   * @example socket.onError(function(error){ alert(\"An error occurred\") })\n   *\n   * @param {Function} callback\n   */\n  onError(callback){\n    let ref = this.makeRef()\n    this.stateChangeCallbacks.error.push([ref, callback])\n    return ref\n  }\n\n  /**\n   * Registers callbacks for connection message events\n   * @param {Function} callback\n   */\n  onMessage(callback){\n    let ref = this.makeRef()\n    this.stateChangeCallbacks.message.push([ref, callback])\n    return ref\n  }\n\n  /**\n   * Pings the server and invokes the callback with the RTT in milliseconds\n   * @param {Function} callback\n   *\n   * Returns true if the ping was pushed or false if unable to be pushed.\n   */\n  ping(callback){\n    if(!this.isConnected()){ return false }\n    let ref = this.makeRef()\n    let startTime = Date.now()\n    this.push({topic: \"phoenix\", event: \"heartbeat\", payload: {}, ref: ref})\n    let onMsgRef = this.onMessage(msg => {\n      if(msg.ref === ref){\n        this.off([onMsgRef])\n        callback(Date.now() - startTime)\n      }\n    })\n    return true\n  }\n\n  /**\n   * @private\n   */\n\n  transportConnect(){\n    this.connectClock++\n    this.closeWasClean = false\n    this.conn = new this.transport(this.endPointURL())\n    this.conn.binaryType = this.binaryType\n    this.conn.timeout = this.longpollerTimeout\n    this.conn.onopen = () => this.onConnOpen()\n    this.conn.onerror = error => this.onConnError(error)\n    this.conn.onmessage = event => this.onConnMessage(event)\n    this.conn.onclose = event => this.onConnClose(event)\n  }\n\n  getSession(key){ return this.sessionStore && this.sessionStore.getItem(key) }\n\n  storeSession(key, val){ this.sessionStore && this.sessionStore.setItem(key, val) }\n\n  connectWithFallback(fallbackTransport, fallbackThreshold = 2500){\n    clearTimeout(this.fallbackTimer)\n    let established = false\n    let primaryTransport = true\n    let openRef, errorRef\n    let fallback = (reason) => {\n      this.log(\"transport\", `falling back to ${fallbackTransport.name}...`, reason)\n      this.off([openRef, errorRef])\n      primaryTransport = false\n      this.replaceTransport(fallbackTransport)\n      this.transportConnect()\n    }\n    if(this.getSession(`phx:fallback:${fallbackTransport.name}`)){ return fallback(\"memorized\") }\n\n    this.fallbackTimer = setTimeout(fallback, fallbackThreshold)\n\n    errorRef = this.onError(reason => {\n      this.log(\"transport\", \"error\", reason)\n      if(primaryTransport && !established) {\n        clearTimeout(this.fallbackTimer)\n        fallback(reason)\n      }\n    })\n    this.onOpen(() => {\n      established = true\n      if(!primaryTransport){\n        // only memorize LP if we never connected to primary\n        if(!this.primaryPassedHealthCheck){ this.storeSession(`phx:fallback:${fallbackTransport.name}`, \"true\") }\n        return this.log(\"transport\", `established ${fallbackTransport.name} fallback`)\n      }\n      // if we've established primary, give the fallback a new period to attempt ping\n      clearTimeout(this.fallbackTimer)\n      this.fallbackTimer = setTimeout(fallback, fallbackThreshold)\n      this.ping(rtt => {\n        this.log(\"transport\", \"connected to primary after\", rtt)\n        this.primaryPassedHealthCheck = true\n        clearTimeout(this.fallbackTimer)\n      })\n    })\n    this.transportConnect()\n  }\n\n  clearHeartbeats(){\n    clearTimeout(this.heartbeatTimer)\n    clearTimeout(this.heartbeatTimeoutTimer)\n  }\n\n  onConnOpen(){\n    if(this.hasLogger()) this.log(\"transport\", `${this.transport.name} connected to ${this.endPointURL()}`)\n    this.closeWasClean = false\n    this.establishedConnections++\n    this.flushSendBuffer()\n    this.reconnectTimer.reset()\n    this.resetHeartbeat()\n    this.stateChangeCallbacks.open.forEach(([, callback]) => callback())\n  }\n\n  /**\n   * @private\n   */\n\n  heartbeatTimeout(){\n    if(this.pendingHeartbeatRef){\n      this.pendingHeartbeatRef = null\n      if(this.hasLogger()){ this.log(\"transport\", \"heartbeat timeout. Attempting to re-establish connection\") }\n      this.triggerChanError()\n      this.closeWasClean = false\n      this.teardown(() => this.reconnectTimer.scheduleTimeout(), WS_CLOSE_NORMAL, \"heartbeat timeout\")\n    }\n  }\n\n  resetHeartbeat(){\n    if(this.conn && this.conn.skipHeartbeat){ return }\n    this.pendingHeartbeatRef = null\n    this.clearHeartbeats()\n    this.heartbeatTimer = setTimeout(() => this.sendHeartbeat(), this.heartbeatIntervalMs)\n  }\n\n  teardown(callback, code, reason){\n    if(!this.conn){\n      return callback && callback()\n    }\n\n    this.waitForBufferDone(() => {\n      if(this.conn){\n        if(code){ this.conn.close(code, reason || \"\") } else { this.conn.close() }\n      }\n\n      this.waitForSocketClosed(() => {\n        if(this.conn){\n          this.conn.onopen = function (){ } // noop\n          this.conn.onerror = function (){ } // noop\n          this.conn.onmessage = function (){ } // noop\n          this.conn.onclose = function (){ } // noop\n          this.conn = null\n        }\n\n        callback && callback()\n      })\n    })\n  }\n\n  waitForBufferDone(callback, tries = 1){\n    if(tries === 5 || !this.conn || !this.conn.bufferedAmount){\n      callback()\n      return\n    }\n\n    setTimeout(() => {\n      this.waitForBufferDone(callback, tries + 1)\n    }, 150 * tries)\n  }\n\n  waitForSocketClosed(callback, tries = 1){\n    if(tries === 5 || !this.conn || this.conn.readyState === SOCKET_STATES.closed){\n      callback()\n      return\n    }\n\n    setTimeout(() => {\n      this.waitForSocketClosed(callback, tries + 1)\n    }, 150 * tries)\n  }\n\n  onConnClose(event){\n    let closeCode = event && event.code\n    if(this.hasLogger()) this.log(\"transport\", \"close\", event)\n    this.triggerChanError()\n    this.clearHeartbeats()\n    if(!this.closeWasClean && closeCode !== 1000){\n      this.reconnectTimer.scheduleTimeout()\n    }\n    this.stateChangeCallbacks.close.forEach(([, callback]) => callback(event))\n  }\n\n  /**\n   * @private\n   */\n  onConnError(error){\n    if(this.hasLogger()) this.log(\"transport\", error)\n    let transportBefore = this.transport\n    let establishedBefore = this.establishedConnections\n    this.stateChangeCallbacks.error.forEach(([, callback]) => {\n      callback(error, transportBefore, establishedBefore)\n    })\n    if(transportBefore === this.transport || establishedBefore > 0){\n      this.triggerChanError()\n    }\n  }\n\n  /**\n   * @private\n   */\n  triggerChanError(){\n    this.channels.forEach(channel => {\n      if(!(channel.isErrored() || channel.isLeaving() || channel.isClosed())){\n        channel.trigger(CHANNEL_EVENTS.error)\n      }\n    })\n  }\n\n  /**\n   * @returns {string}\n   */\n  connectionState(){\n    switch(this.conn && this.conn.readyState){\n      case SOCKET_STATES.connecting: return \"connecting\"\n      case SOCKET_STATES.open: return \"open\"\n      case SOCKET_STATES.closing: return \"closing\"\n      default: return \"closed\"\n    }\n  }\n\n  /**\n   * @returns {boolean}\n   */\n  isConnected(){ return this.connectionState() === \"open\" }\n\n  /**\n   * @private\n   *\n   * @param {Channel}\n   */\n  remove(channel){\n    this.off(channel.stateChangeRefs)\n    this.channels = this.channels.filter(c => c !== channel)\n  }\n\n  /**\n   * Removes `onOpen`, `onClose`, `onError,` and `onMessage` registrations.\n   *\n   * @param {refs} - 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+  "sourcesContent": ["/**\n * Phoenix Channels JavaScript client\n *\n * ## Socket Connection\n *\n * A single connection is established to the server and\n * channels are multiplexed over the connection.\n * Connect to the server using the `Socket` class:\n *\n * ```javascript\n * let socket = new Socket(\"/socket\", {params: {userToken: \"123\"}})\n * socket.connect()\n * ```\n *\n * The `Socket` constructor takes the mount point of the socket,\n * the authentication params, as well as options that can be found in\n * the Socket docs, such as configuring the `LongPoll` transport, and\n * heartbeat.\n *\n * ## Channels\n *\n * Channels are isolated, concurrent processes on the server that\n * subscribe to topics and broker events between the client and server.\n * To join a channel, you must provide the topic, and channel params for\n * authorization. Here's an example chat room example where `\"new_msg\"`\n * events are listened for, messages are pushed to the server, and\n * the channel is joined with ok/error/timeout matches:\n *\n * ```javascript\n * let channel = socket.channel(\"room:123\", {token: roomToken})\n * channel.on(\"new_msg\", msg => console.log(\"Got message\", msg) )\n * $input.onEnter( e => {\n *   channel.push(\"new_msg\", {body: e.target.val}, 10000)\n *     .receive(\"ok\", (msg) => console.log(\"created message\", msg) )\n *     .receive(\"error\", (reasons) => console.log(\"create failed\", reasons) )\n *     .receive(\"timeout\", () => console.log(\"Networking issue...\") )\n * })\n *\n * channel.join()\n *   .receive(\"ok\", ({messages}) => console.log(\"catching up\", messages) )\n *   .receive(\"error\", ({reason}) => console.log(\"failed join\", reason) )\n *   .receive(\"timeout\", () => console.log(\"Networking issue. Still waiting...\"))\n *```\n *\n * ## Joining\n *\n * Creating a channel with `socket.channel(topic, params)`, binds the params to\n * `channel.params`, which are sent up on `channel.join()`.\n * Subsequent rejoins will send up the modified params for\n * updating authorization params, or passing up last_message_id information.\n * Successful joins receive an \"ok\" status, while unsuccessful joins\n * receive \"error\".\n *\n * With the default serializers and WebSocket transport, JSON text frames are\n * used for pushing a JSON object literal. If an `ArrayBuffer` instance is provided,\n * binary encoding will be used and the message will be sent with the binary\n * opcode.\n *\n * *Note*: binary messages are only supported on the WebSocket transport.\n *\n * ## Duplicate Join Subscriptions\n *\n * While the client may join any number of topics on any number of channels,\n * the client may only hold a single subscription for each unique topic at any\n * given time. When attempting to create a duplicate subscription,\n * the server will close the existing channel, log a warning, and\n * spawn a new channel for the topic. The client will have their\n * `channel.onClose` callbacks fired for the existing channel, and the new\n * channel join will have its receive hooks processed as normal.\n *\n * ## Pushing Messages\n *\n * From the previous example, we can see that pushing messages to the server\n * can be done with `channel.push(eventName, payload)` and we can optionally\n * receive responses from the push. Additionally, we can use\n * `receive(\"timeout\", callback)` to abort waiting for our other `receive` hooks\n *  and take action after some period of waiting. The default timeout is 10000ms.\n *\n *\n * ## Socket Hooks\n *\n * Lifecycle events of the multiplexed connection can be hooked into via\n * `socket.onError()` and `socket.onClose()` events, ie:\n *\n * ```javascript\n * socket.onError( () => console.log(\"there was an error with the connection!\") )\n * socket.onClose( () => console.log(\"the connection dropped\") )\n * ```\n *\n *\n * ## Channel Hooks\n *\n * For each joined channel, you can bind to `onError` and `onClose` events\n * to monitor the channel lifecycle, ie:\n *\n * ```javascript\n * channel.onError( () => console.log(\"there was an error!\") )\n * channel.onClose( () => console.log(\"the channel has gone away gracefully\") )\n * ```\n *\n * ### onError hooks\n *\n * `onError` hooks are invoked if the socket connection drops, or the channel\n * crashes on the server. In either case, a channel rejoin is attempted\n * automatically in an exponential backoff manner.\n *\n * ### onClose hooks\n *\n * `onClose` hooks are invoked only in two cases. 1) the channel explicitly\n * closed on the server, or 2). The client explicitly closed, by calling\n * `channel.leave()`\n *\n *\n * ## Presence\n *\n * The `Presence` object provides features for syncing presence information\n * from the server with the client and handling presences joining and leaving.\n *\n * ### Syncing state from the server\n *\n * To sync presence state from the server, first instantiate an object and\n * pass your channel in to track lifecycle events:\n *\n * ```javascript\n * let channel = socket.channel(\"some:topic\")\n * let presence = new Presence(channel)\n * ```\n *\n * Next, use the `presence.onSync` callback to react to state changes\n * from the server. For example, to render the list of users every time\n * the list changes, you could write:\n *\n * ```javascript\n * presence.onSync(() => {\n *   myRenderUsersFunction(presence.list())\n * })\n * ```\n *\n * ### Listing Presences\n *\n * `presence.list` is used to return a list of presence information\n * based on the local state of metadata. By default, all presence\n * metadata is returned, but a `listBy` function can be supplied to\n * allow the client to select which metadata to use for a given presence.\n * For example, you may have a user online from different devices with\n * a metadata status of \"online\", but they have set themselves to \"away\"\n * on another device. In this case, the app may choose to use the \"away\"\n * status for what appears on the UI. The example below defines a `listBy`\n * function which prioritizes the first metadata which was registered for\n * each user. This could be the first tab they opened, or the first device\n * they came online from:\n *\n * ```javascript\n * let listBy = (id, {metas: [first, ...rest]}) => {\n *   first.count = rest.length + 1 // count of this user's presences\n *   first.id = id\n *   return first\n * }\n * let onlineUsers = presence.list(listBy)\n * ```\n *\n * ### Handling individual presence join and leave events\n *\n * The `presence.onJoin` and `presence.onLeave` callbacks can be used to\n * react to individual presences joining and leaving the app. For example:\n *\n * ```javascript\n * let presence = new Presence(channel)\n *\n * // detect if user has joined for the 1st time or from another tab/device\n * presence.onJoin((id, current, newPres) => {\n *   if(!current){\n *     console.log(\"user has entered for the first time\", newPres)\n *   } else {\n *     console.log(\"user additional presence\", newPres)\n *   }\n * })\n *\n * // detect if user has left from all tabs/devices, or is still present\n * presence.onLeave((id, current, leftPres) => {\n *   if(current.metas.length === 0){\n *     console.log(\"user has left from all devices\", leftPres)\n *   } else {\n *     console.log(\"user left from a device\", leftPres)\n *   }\n * })\n * // receive presence data from server\n * presence.onSync(() => {\n *   displayUsers(presence.list())\n * })\n * ```\n * @module phoenix\n */\n\nimport Channel from \"./channel\"\nimport LongPoll from \"./longpoll\"\nimport Presence from \"./presence\"\nimport Serializer from \"./serializer\"\nimport Socket from \"./socket\"\n\nexport {\n  Channel,\n  LongPoll,\n  Presence,\n  Serializer,\n  Socket\n}\n", "// wraps value in closure or returns closure\nexport let closure = (value) => {\n  if(typeof value === \"function\"){\n    return value\n  } else {\n    let closure = function (){ return value }\n    return closure\n  }\n}\n", "export const globalSelf = typeof self !== \"undefined\" ? self : null\nexport const phxWindow = typeof window !== \"undefined\" ? window : null\nexport const global = globalSelf || phxWindow || global\nexport const DEFAULT_VSN = \"2.0.0\"\nexport const SOCKET_STATES = {connecting: 0, open: 1, closing: 2, closed: 3}\nexport const DEFAULT_TIMEOUT = 10000\nexport const WS_CLOSE_NORMAL = 1000\nexport const CHANNEL_STATES = {\n  closed: \"closed\",\n  errored: \"errored\",\n  joined: \"joined\",\n  joining: \"joining\",\n  leaving: \"leaving\",\n}\nexport const CHANNEL_EVENTS = {\n  close: \"phx_close\",\n  error: \"phx_error\",\n  join: \"phx_join\",\n  reply: \"phx_reply\",\n  leave: \"phx_leave\"\n}\n\nexport const TRANSPORTS = {\n  longpoll: \"longpoll\",\n  websocket: \"websocket\"\n}\nexport const XHR_STATES = {\n  complete: 4\n}\n", "/**\n * Initializes the Push\n * @param {Channel} channel - The Channel\n * @param {string} event - The event, for example `\"phx_join\"`\n * @param {Object} payload - The payload, for example `{user_id: 123}`\n * @param {number} timeout - The push timeout in milliseconds\n */\nexport default class Push {\n  constructor(channel, event, payload, timeout){\n    this.channel = channel\n    this.event = event\n    this.payload = payload || function (){ return {} }\n    this.receivedResp = null\n    this.timeout = timeout\n    this.timeoutTimer = null\n    this.recHooks = []\n    this.sent = false\n  }\n\n  /**\n   *\n   * @param {number} timeout\n   */\n  resend(timeout){\n    this.timeout = timeout\n    this.reset()\n    this.send()\n  }\n\n  /**\n   *\n   */\n  send(){\n    if(this.hasReceived(\"timeout\")){ return }\n    this.startTimeout()\n    this.sent = true\n    this.channel.socket.push({\n      topic: this.channel.topic,\n      event: this.event,\n      payload: this.payload(),\n      ref: this.ref,\n      join_ref: this.channel.joinRef()\n    })\n  }\n\n  /**\n   *\n   * @param {*} status\n   * @param {*} callback\n   */\n  receive(status, callback){\n    if(this.hasReceived(status)){\n      callback(this.receivedResp.response)\n    }\n\n    this.recHooks.push({status, callback})\n    return this\n  }\n\n  /**\n   * @private\n   */\n  reset(){\n    this.cancelRefEvent()\n    this.ref = null\n    this.refEvent = null\n    this.receivedResp = null\n    this.sent = false\n  }\n\n  /**\n   * @private\n   */\n  matchReceive({status, response, _ref}){\n    this.recHooks.filter(h => h.status === status)\n      .forEach(h => h.callback(response))\n  }\n\n  /**\n   * @private\n   */\n  cancelRefEvent(){\n    if(!this.refEvent){ return }\n    this.channel.off(this.refEvent)\n  }\n\n  /**\n   * @private\n   */\n  cancelTimeout(){\n    clearTimeout(this.timeoutTimer)\n    this.timeoutTimer = null\n  }\n\n  /**\n   * @private\n   */\n  startTimeout(){\n    if(this.timeoutTimer){ this.cancelTimeout() }\n    this.ref = this.channel.socket.makeRef()\n    this.refEvent = this.channel.replyEventName(this.ref)\n\n    this.channel.on(this.refEvent, payload => {\n      this.cancelRefEvent()\n      this.cancelTimeout()\n      this.receivedResp = payload\n      this.matchReceive(payload)\n    })\n\n    this.timeoutTimer = setTimeout(() => {\n      this.trigger(\"timeout\", {})\n    }, this.timeout)\n  }\n\n  /**\n   * @private\n   */\n  hasReceived(status){\n    return this.receivedResp && this.receivedResp.status === status\n  }\n\n  /**\n   * @private\n   */\n  trigger(status, response){\n    this.channel.trigger(this.refEvent, {status, response})\n  }\n}\n", "/**\n *\n * Creates a timer that accepts a `timerCalc` function to perform\n * calculated timeout retries, such as exponential backoff.\n *\n * @example\n * let reconnectTimer = new Timer(() => this.connect(), function(tries){\n *   return [1000, 5000, 10000][tries - 1] || 10000\n * })\n * reconnectTimer.scheduleTimeout() // fires after 1000\n * reconnectTimer.scheduleTimeout() // fires after 5000\n * reconnectTimer.reset()\n * reconnectTimer.scheduleTimeout() // fires after 1000\n *\n * @param {Function} callback\n * @param {Function} timerCalc\n */\nexport default class Timer {\n  constructor(callback, timerCalc){\n    this.callback = callback\n    this.timerCalc = timerCalc\n    this.timer = null\n    this.tries = 0\n  }\n\n  reset(){\n    this.tries = 0\n    clearTimeout(this.timer)\n  }\n\n  /**\n   * Cancels any previous scheduleTimeout and schedules callback\n   */\n  scheduleTimeout(){\n    clearTimeout(this.timer)\n\n    this.timer = setTimeout(() => {\n      this.tries = this.tries + 1\n      this.callback()\n    }, this.timerCalc(this.tries + 1))\n  }\n}\n", "import {closure} from \"./utils\"\nimport {\n  CHANNEL_EVENTS,\n  CHANNEL_STATES,\n} from \"./constants\"\n\nimport Push from \"./push\"\nimport Timer from \"./timer\"\n\n/**\n *\n * @param {string} topic\n * @param {(Object|function)} params\n * @param {Socket} socket\n */\nexport default class Channel {\n  constructor(topic, params, socket){\n    this.state = CHANNEL_STATES.closed\n    this.topic = topic\n    this.params = closure(params || {})\n    this.socket = socket\n    this.bindings = []\n    this.bindingRef = 0\n    this.timeout = this.socket.timeout\n    this.joinedOnce = false\n    this.joinPush = new Push(this, CHANNEL_EVENTS.join, this.params, this.timeout)\n    this.pushBuffer = []\n    this.stateChangeRefs = []\n\n    this.rejoinTimer = new Timer(() => {\n      if(this.socket.isConnected()){ this.rejoin() }\n    }, this.socket.rejoinAfterMs)\n    this.stateChangeRefs.push(this.socket.onError(() => this.rejoinTimer.reset()))\n    this.stateChangeRefs.push(this.socket.onOpen(() => {\n      this.rejoinTimer.reset()\n      if(this.isErrored()){ this.rejoin() }\n    })\n    )\n    this.joinPush.receive(\"ok\", () => {\n      this.state = CHANNEL_STATES.joined\n      this.rejoinTimer.reset()\n      this.pushBuffer.forEach(pushEvent => pushEvent.send())\n      this.pushBuffer = []\n    })\n    this.joinPush.receive(\"error\", () => {\n      this.state = CHANNEL_STATES.errored\n      if(this.socket.isConnected()){ this.rejoinTimer.scheduleTimeout() }\n    })\n    this.onClose(() => {\n      this.rejoinTimer.reset()\n      if(this.socket.hasLogger()) this.socket.log(\"channel\", `close ${this.topic} ${this.joinRef()}`)\n      this.state = CHANNEL_STATES.closed\n      this.socket.remove(this)\n    })\n    this.onError(reason => {\n      if(this.socket.hasLogger()) this.socket.log(\"channel\", `error ${this.topic}`, reason)\n      if(this.isJoining()){ this.joinPush.reset() }\n      this.state = CHANNEL_STATES.errored\n      if(this.socket.isConnected()){ this.rejoinTimer.scheduleTimeout() }\n    })\n    this.joinPush.receive(\"timeout\", () => {\n      if(this.socket.hasLogger()) this.socket.log(\"channel\", `timeout ${this.topic} (${this.joinRef()})`, this.joinPush.timeout)\n      let leavePush = new Push(this, CHANNEL_EVENTS.leave, closure({}), this.timeout)\n      leavePush.send()\n      this.state = CHANNEL_STATES.errored\n      this.joinPush.reset()\n      if(this.socket.isConnected()){ this.rejoinTimer.scheduleTimeout() }\n    })\n    this.on(CHANNEL_EVENTS.reply, (payload, ref) => {\n      this.trigger(this.replyEventName(ref), payload)\n    })\n  }\n\n  /**\n   * Join the channel\n   * @param {integer} timeout\n   * @returns {Push}\n   */\n  join(timeout = this.timeout){\n    if(this.joinedOnce){\n      throw new Error(\"tried to join multiple times. 'join' can only be called a single time per channel instance\")\n    } else {\n      this.timeout = timeout\n      this.joinedOnce = true\n      this.rejoin()\n      return this.joinPush\n    }\n  }\n\n  /**\n   * Hook into channel close\n   * @param {Function} callback\n   */\n  onClose(callback){\n    this.on(CHANNEL_EVENTS.close, callback)\n  }\n\n  /**\n   * Hook into channel errors\n   * @param {Function} callback\n   */\n  onError(callback){\n    return this.on(CHANNEL_EVENTS.error, reason => callback(reason))\n  }\n\n  /**\n   * Subscribes on channel events\n   *\n   * Subscription returns a ref counter, which can be used later to\n   * unsubscribe the exact event listener\n   *\n   * @example\n   * const ref1 = channel.on(\"event\", do_stuff)\n   * const ref2 = channel.on(\"event\", do_other_stuff)\n   * channel.off(\"event\", ref1)\n   * // Since unsubscription, do_stuff won't fire,\n   * // while do_other_stuff will keep firing on the \"event\"\n   *\n   * @param {string} event\n   * @param {Function} callback\n   * @returns {integer} ref\n   */\n  on(event, callback){\n    let ref = this.bindingRef++\n    this.bindings.push({event, ref, callback})\n    return ref\n  }\n\n  /**\n   * Unsubscribes off of channel events\n   *\n   * Use the ref returned from a channel.on() to unsubscribe one\n   * handler, or pass nothing for the ref to unsubscribe all\n   * handlers for the given event.\n   *\n   * @example\n   * // Unsubscribe the do_stuff handler\n   * const ref1 = channel.on(\"event\", do_stuff)\n   * channel.off(\"event\", ref1)\n   *\n   * // Unsubscribe all handlers from event\n   * channel.off(\"event\")\n   *\n   * @param {string} event\n   * @param {integer} ref\n   */\n  off(event, ref){\n    this.bindings = this.bindings.filter((bind) => {\n      return !(bind.event === event && (typeof ref === \"undefined\" || ref === bind.ref))\n    })\n  }\n\n  /**\n   * @private\n   */\n  canPush(){ return this.socket.isConnected() && this.isJoined() }\n\n  /**\n   * Sends a message `event` to phoenix with the payload `payload`.\n   * Phoenix receives this in the `handle_in(event, payload, socket)`\n   * function. if phoenix replies or it times out (default 10000ms),\n   * then optionally the reply can be received.\n   *\n   * @example\n   * channel.push(\"event\")\n   *   .receive(\"ok\", payload => console.log(\"phoenix replied:\", payload))\n   *   .receive(\"error\", err => console.log(\"phoenix errored\", err))\n   *   .receive(\"timeout\", () => console.log(\"timed out pushing\"))\n   * @param {string} event\n   * @param {Object} payload\n   * @param {number} [timeout]\n   * @returns {Push}\n   */\n  push(event, payload, timeout = this.timeout){\n    payload = payload || {}\n    if(!this.joinedOnce){\n      throw new Error(`tried to push '${event}' to '${this.topic}' before joining. Use channel.join() before pushing events`)\n    }\n    let pushEvent = new Push(this, event, function (){ return payload }, timeout)\n    if(this.canPush()){\n      pushEvent.send()\n    } else {\n      pushEvent.startTimeout()\n      this.pushBuffer.push(pushEvent)\n    }\n\n    return pushEvent\n  }\n\n  /** Leaves the channel\n   *\n   * Unsubscribes from server events, and\n   * instructs channel to terminate on server\n   *\n   * Triggers onClose() hooks\n   *\n   * To receive leave acknowledgements, use the `receive`\n   * hook to bind to the server ack, ie:\n   *\n   * @example\n   * channel.leave().receive(\"ok\", () => alert(\"left!\") )\n   *\n   * @param {integer} timeout\n   * @returns {Push}\n   */\n  leave(timeout = this.timeout){\n    this.rejoinTimer.reset()\n    this.joinPush.cancelTimeout()\n\n    this.state = CHANNEL_STATES.leaving\n    let onClose = () => {\n      if(this.socket.hasLogger()) this.socket.log(\"channel\", `leave ${this.topic}`)\n      this.trigger(CHANNEL_EVENTS.close, \"leave\")\n    }\n    let leavePush = new Push(this, CHANNEL_EVENTS.leave, closure({}), timeout)\n    leavePush.receive(\"ok\", () => onClose())\n      .receive(\"timeout\", () => onClose())\n    leavePush.send()\n    if(!this.canPush()){ leavePush.trigger(\"ok\", {}) }\n\n    return leavePush\n  }\n\n  /**\n   * Overridable message hook\n   *\n   * Receives all events for specialized message handling\n   * before dispatching to the channel callbacks.\n   *\n   * Must return the payload, modified or unmodified\n   * @param {string} event\n   * @param {Object} payload\n   * @param {integer} ref\n   * @returns {Object}\n   */\n  onMessage(_event, payload, _ref){ return payload }\n\n  /**\n   * @private\n   */\n  isMember(topic, event, payload, joinRef){\n    if(this.topic !== topic){ return false }\n\n    if(joinRef && joinRef !== this.joinRef()){\n      if(this.socket.hasLogger()) this.socket.log(\"channel\", \"dropping outdated message\", {topic, event, payload, joinRef})\n      return false\n    } else {\n      return true\n    }\n  }\n\n  /**\n   * @private\n   */\n  joinRef(){ return this.joinPush.ref }\n\n  /**\n   * @private\n   */\n  rejoin(timeout = this.timeout){\n    if(this.isLeaving()){ return }\n    this.socket.leaveOpenTopic(this.topic)\n    this.state = CHANNEL_STATES.joining\n    this.joinPush.resend(timeout)\n  }\n\n  /**\n   * @private\n   */\n  trigger(event, payload, ref, joinRef){\n    let handledPayload = this.onMessage(event, payload, ref, joinRef)\n    if(payload && !handledPayload){ throw new Error(\"channel onMessage callbacks must return the payload, modified or unmodified\") }\n\n    let eventBindings = this.bindings.filter(bind => bind.event === event)\n\n    for(let i = 0; i < eventBindings.length; i++){\n      let bind = eventBindings[i]\n      bind.callback(handledPayload, ref, joinRef || this.joinRef())\n    }\n  }\n\n  /**\n   * @private\n   */\n  replyEventName(ref){ return `chan_reply_${ref}` }\n\n  /**\n   * @private\n   */\n  isClosed(){ return this.state === CHANNEL_STATES.closed }\n\n  /**\n   * @private\n   */\n  isErrored(){ return this.state === CHANNEL_STATES.errored }\n\n  /**\n   * @private\n   */\n  isJoined(){ return this.state === CHANNEL_STATES.joined }\n\n  /**\n   * @private\n   */\n  isJoining(){ return this.state === CHANNEL_STATES.joining }\n\n  /**\n   * @private\n   */\n  isLeaving(){ return this.state === CHANNEL_STATES.leaving }\n}\n", "import {\n  global,\n  XHR_STATES\n} from \"./constants\"\n\nexport default class Ajax {\n\n  static request(method, endPoint, accept, body, timeout, ontimeout, callback){\n    if(global.XDomainRequest){\n      let req = new global.XDomainRequest() // IE8, IE9\n      return this.xdomainRequest(req, method, endPoint, body, timeout, ontimeout, callback)\n    } else {\n      let req = new global.XMLHttpRequest() // IE7+, Firefox, Chrome, Opera, Safari\n      return this.xhrRequest(req, method, endPoint, accept, body, timeout, ontimeout, callback)\n    }\n  }\n\n  static xdomainRequest(req, method, endPoint, body, timeout, ontimeout, callback){\n    req.timeout = timeout\n    req.open(method, endPoint)\n    req.onload = () => {\n      let response = this.parseJSON(req.responseText)\n      callback && callback(response)\n    }\n    if(ontimeout){ req.ontimeout = ontimeout }\n\n    // Work around bug in IE9 that requires an attached onprogress handler\n    req.onprogress = () => { }\n\n    req.send(body)\n    return req\n  }\n\n  static xhrRequest(req, method, endPoint, accept, body, timeout, ontimeout, callback){\n    req.open(method, endPoint, true)\n    req.timeout = timeout\n    req.setRequestHeader(\"Content-Type\", accept)\n    req.onerror = () => callback && callback(null)\n    req.onreadystatechange = () => {\n      if(req.readyState === XHR_STATES.complete && callback){\n        let response = this.parseJSON(req.responseText)\n        callback(response)\n      }\n    }\n    if(ontimeout){ req.ontimeout = ontimeout }\n\n    req.send(body)\n    return req\n  }\n\n  static parseJSON(resp){\n    if(!resp || resp === \"\"){ return null }\n\n    try {\n      return JSON.parse(resp)\n    } catch (e){\n      console && console.log(\"failed to parse JSON response\", resp)\n      return null\n    }\n  }\n\n  static serialize(obj, parentKey){\n    let queryStr = []\n    for(var key in obj){\n      if(!Object.prototype.hasOwnProperty.call(obj, key)){ continue }\n      let paramKey = parentKey ? `${parentKey}[${key}]` : key\n      let paramVal = obj[key]\n      if(typeof paramVal === \"object\"){\n        queryStr.push(this.serialize(paramVal, paramKey))\n      } else {\n        queryStr.push(encodeURIComponent(paramKey) + \"=\" + encodeURIComponent(paramVal))\n      }\n    }\n    return queryStr.join(\"&\")\n  }\n\n  static appendParams(url, params){\n    if(Object.keys(params).length === 0){ return url }\n\n    let prefix = url.match(/\\?/) ? \"&\" : \"?\"\n    return `${url}${prefix}${this.serialize(params)}`\n  }\n}\n", "import {\n  SOCKET_STATES,\n  TRANSPORTS\n} from \"./constants\"\n\nimport Ajax from \"./ajax\"\n\nlet arrayBufferToBase64 = (buffer) => {\n  let binary = \"\"\n  let bytes = new Uint8Array(buffer)\n  let len = bytes.byteLength\n  for(let i = 0; i < len; i++){ binary += String.fromCharCode(bytes[i]) }\n  return btoa(binary)\n}\n\nexport default class LongPoll {\n\n  constructor(endPoint){\n    this.endPoint = null\n    this.token = null\n    this.skipHeartbeat = true\n    this.reqs = new Set()\n    this.awaitingBatchAck = false\n    this.currentBatch = null\n    this.currentBatchTimer = null\n    this.batchBuffer = []\n    this.onopen = function (){ } // noop\n    this.onerror = function (){ } // noop\n    this.onmessage = function (){ } // noop\n    this.onclose = function (){ } // noop\n    this.pollEndpoint = this.normalizeEndpoint(endPoint)\n    this.readyState = SOCKET_STATES.connecting\n    // we must wait for the caller to finish setting up our callbacks and timeout properties\n    setTimeout(() => this.poll(), 0)\n  }\n\n  normalizeEndpoint(endPoint){\n    return (endPoint\n      .replace(\"ws://\", \"http://\")\n      .replace(\"wss://\", \"https://\")\n      .replace(new RegExp(\"(.*)\\/\" + TRANSPORTS.websocket), \"$1/\" + TRANSPORTS.longpoll))\n  }\n\n  endpointURL(){\n    return Ajax.appendParams(this.pollEndpoint, {token: this.token})\n  }\n\n  closeAndRetry(code, reason, wasClean){\n    this.close(code, reason, wasClean)\n    this.readyState = SOCKET_STATES.connecting\n  }\n\n  ontimeout(){\n    this.onerror(\"timeout\")\n    this.closeAndRetry(1005, \"timeout\", false)\n  }\n\n  isActive(){ return this.readyState === SOCKET_STATES.open || this.readyState === SOCKET_STATES.connecting }\n\n  poll(){\n    this.ajax(\"GET\", \"application/json\", null, () => this.ontimeout(), resp => {\n      if(resp){\n        var {status, token, messages} = resp\n        this.token = token\n      } else {\n        status = 0\n      }\n\n      switch(status){\n        case 200:\n          messages.forEach(msg => {\n            // Tasks are what things like event handlers, setTimeout callbacks,\n            // promise resolves and more are run within.\n            // In modern browsers, there are two different kinds of tasks,\n            // microtasks and macrotasks.\n            // Microtasks are mainly used for Promises, while macrotasks are\n            // used for everything else.\n            // Microtasks always have priority over macrotasks. If the JS engine\n            // is looking for a task to run, it will always try to empty the\n            // microtask queue before attempting to run anything from the\n            // macrotask queue.\n            //\n            // For the WebSocket transport, messages always arrive in their own\n            // event. This means that if any promises are resolved from within,\n            // their callbacks will always finish execution by the time the\n            // next message event handler is run.\n            //\n            // In order to emulate this behaviour, we need to make sure each\n            // onmessage handler is run within its own macrotask.\n            setTimeout(() => this.onmessage({data: msg}), 0)\n          })\n          this.poll()\n          break\n        case 204:\n          this.poll()\n          break\n        case 410:\n          this.readyState = SOCKET_STATES.open\n          this.onopen({})\n          this.poll()\n          break\n        case 403:\n          this.onerror(403)\n          this.close(1008, \"forbidden\", false)\n          break\n        case 0:\n        case 500:\n          this.onerror(500)\n          this.closeAndRetry(1011, \"internal server error\", 500)\n          break\n        default: throw new Error(`unhandled poll status ${status}`)\n      }\n    })\n  }\n\n  // we collect all pushes within the current event loop by\n  // setTimeout 0, which optimizes back-to-back procedural\n  // pushes against an empty buffer\n\n  send(body){\n    if(typeof(body) !== \"string\"){ body = arrayBufferToBase64(body) }\n    if(this.currentBatch){\n      this.currentBatch.push(body)\n    } else if(this.awaitingBatchAck){\n      this.batchBuffer.push(body)\n    } else {\n      this.currentBatch = [body]\n      this.currentBatchTimer = setTimeout(() => {\n        this.batchSend(this.currentBatch)\n        this.currentBatch = null\n      }, 0)\n    }\n  }\n\n  batchSend(messages){\n    this.awaitingBatchAck = true\n    this.ajax(\"POST\", \"application/x-ndjson\", messages.join(\"\\n\"), () => this.onerror(\"timeout\"), resp => {\n      this.awaitingBatchAck = false\n      if(!resp || resp.status !== 200){\n        this.onerror(resp && resp.status)\n        this.closeAndRetry(1011, \"internal server error\", false)\n      } else if(this.batchBuffer.length > 0){\n        this.batchSend(this.batchBuffer)\n        this.batchBuffer = []\n      }\n    })\n  }\n\n  close(code, reason, wasClean){\n    for(let req of this.reqs){ req.abort() }\n    this.readyState = SOCKET_STATES.closed\n    let opts = Object.assign({code: 1000, reason: undefined, wasClean: true}, {code, reason, wasClean})\n    this.batchBuffer = []\n    clearTimeout(this.currentBatchTimer)\n    this.currentBatchTimer = null\n    if(typeof(CloseEvent) !== \"undefined\"){\n      this.onclose(new CloseEvent(\"close\", opts))\n    } else {\n      this.onclose(opts)\n    }\n  }\n\n  ajax(method, contentType, body, onCallerTimeout, callback){\n    let req\n    let ontimeout = () => {\n      this.reqs.delete(req)\n      onCallerTimeout()\n    }\n    req = Ajax.request(method, this.endpointURL(), contentType, body, this.timeout, ontimeout, resp => {\n      this.reqs.delete(req)\n      if(this.isActive()){ callback(resp) }\n    })\n    this.reqs.add(req)\n  }\n}\n", "/**\n * Initializes the Presence\n * @param {Channel} channel - The Channel\n * @param {Object} opts - The options,\n *        for example `{events: {state: \"state\", diff: \"diff\"}}`\n */\nexport default class Presence {\n\n  constructor(channel, opts = {}){\n    let events = opts.events || {state: \"presence_state\", diff: \"presence_diff\"}\n    this.state = {}\n    this.pendingDiffs = []\n    this.channel = channel\n    this.joinRef = null\n    this.caller = {\n      onJoin: function (){ },\n      onLeave: function (){ },\n      onSync: function (){ }\n    }\n\n    this.channel.on(events.state, newState => {\n      let {onJoin, onLeave, onSync} = this.caller\n\n      this.joinRef = this.channel.joinRef()\n      this.state = Presence.syncState(this.state, newState, onJoin, onLeave)\n\n      this.pendingDiffs.forEach(diff => {\n        this.state = Presence.syncDiff(this.state, diff, onJoin, onLeave)\n      })\n      this.pendingDiffs = []\n      onSync()\n    })\n\n    this.channel.on(events.diff, diff => {\n      let {onJoin, onLeave, onSync} = this.caller\n\n      if(this.inPendingSyncState()){\n        this.pendingDiffs.push(diff)\n      } else {\n        this.state = Presence.syncDiff(this.state, diff, onJoin, onLeave)\n        onSync()\n      }\n    })\n  }\n\n  onJoin(callback){ this.caller.onJoin = callback }\n\n  onLeave(callback){ this.caller.onLeave = callback }\n\n  onSync(callback){ this.caller.onSync = callback }\n\n  list(by){ return Presence.list(this.state, by) }\n\n  inPendingSyncState(){\n    return !this.joinRef || (this.joinRef !== this.channel.joinRef())\n  }\n\n  // lower-level public static API\n\n  /**\n   * Used to sync the list of presences on the server\n   * with the client's state. An optional `onJoin` and `onLeave` callback can\n   * be provided to react to changes in the client's local presences across\n   * disconnects and reconnects with the server.\n   *\n   * @returns {Presence}\n   */\n  static syncState(currentState, newState, onJoin, onLeave){\n    let state = this.clone(currentState)\n    let joins = {}\n    let leaves = {}\n\n    this.map(state, (key, presence) => {\n      if(!newState[key]){\n        leaves[key] = presence\n      }\n    })\n    this.map(newState, (key, newPresence) => {\n      let currentPresence = state[key]\n      if(currentPresence){\n        let newRefs = newPresence.metas.map(m => m.phx_ref)\n        let curRefs = currentPresence.metas.map(m => m.phx_ref)\n        let joinedMetas = newPresence.metas.filter(m => curRefs.indexOf(m.phx_ref) < 0)\n        let leftMetas = currentPresence.metas.filter(m => newRefs.indexOf(m.phx_ref) < 0)\n        if(joinedMetas.length > 0){\n          joins[key] = newPresence\n          joins[key].metas = joinedMetas\n        }\n        if(leftMetas.length > 0){\n          leaves[key] = this.clone(currentPresence)\n          leaves[key].metas = leftMetas\n        }\n      } else {\n        joins[key] = newPresence\n      }\n    })\n    return this.syncDiff(state, {joins: joins, leaves: leaves}, onJoin, onLeave)\n  }\n\n  /**\n   *\n   * Used to sync a diff of presence join and leave\n   * events from the server, as they happen. Like `syncState`, `syncDiff`\n   * accepts optional `onJoin` and `onLeave` callbacks to react to a user\n   * joining or leaving from a device.\n   *\n   * @returns {Presence}\n   */\n  static syncDiff(state, diff, onJoin, onLeave){\n    let {joins, leaves} = this.clone(diff)\n    if(!onJoin){ onJoin = function (){ } }\n    if(!onLeave){ onLeave = function (){ } }\n\n    this.map(joins, (key, newPresence) => {\n      let currentPresence = state[key]\n      state[key] = this.clone(newPresence)\n      if(currentPresence){\n        let joinedRefs = state[key].metas.map(m => m.phx_ref)\n        let curMetas = currentPresence.metas.filter(m => joinedRefs.indexOf(m.phx_ref) < 0)\n        state[key].metas.unshift(...curMetas)\n      }\n      onJoin(key, currentPresence, newPresence)\n    })\n    this.map(leaves, (key, leftPresence) => {\n      let currentPresence = state[key]\n      if(!currentPresence){ return }\n      let refsToRemove = leftPresence.metas.map(m => m.phx_ref)\n      currentPresence.metas = currentPresence.metas.filter(p => {\n        return refsToRemove.indexOf(p.phx_ref) < 0\n      })\n      onLeave(key, currentPresence, leftPresence)\n      if(currentPresence.metas.length === 0){\n        delete state[key]\n      }\n    })\n    return state\n  }\n\n  /**\n   * Returns the array of presences, with selected metadata.\n   *\n   * @param {Object} presences\n   * @param {Function} chooser\n   *\n   * @returns {Presence}\n   */\n  static list(presences, chooser){\n    if(!chooser){ chooser = function (key, pres){ return pres } }\n\n    return this.map(presences, (key, presence) => {\n      return chooser(key, presence)\n    })\n  }\n\n  // private\n\n  static map(obj, func){\n    return Object.getOwnPropertyNames(obj).map(key => func(key, obj[key]))\n  }\n\n  static clone(obj){ return JSON.parse(JSON.stringify(obj)) }\n}\n", "/* The default serializer for encoding and decoding messages */\nimport {\n  CHANNEL_EVENTS\n} from \"./constants\"\n\nexport default {\n  HEADER_LENGTH: 1,\n  META_LENGTH: 4,\n  KINDS: {push: 0, reply: 1, broadcast: 2},\n\n  encode(msg, callback){\n    if(msg.payload.constructor === ArrayBuffer){\n      return callback(this.binaryEncode(msg))\n    } else {\n      let payload = [msg.join_ref, msg.ref, msg.topic, msg.event, msg.payload]\n      return callback(JSON.stringify(payload))\n    }\n  },\n\n  decode(rawPayload, callback){\n    if(rawPayload.constructor === ArrayBuffer){\n      return callback(this.binaryDecode(rawPayload))\n    } else {\n      let [join_ref, ref, topic, event, payload] = JSON.parse(rawPayload)\n      return callback({join_ref, ref, topic, event, payload})\n    }\n  },\n\n  // private\n\n  binaryEncode(message){\n    let {join_ref, ref, event, topic, payload} = message\n    let metaLength = this.META_LENGTH + join_ref.length + ref.length + topic.length + event.length\n    let header = new ArrayBuffer(this.HEADER_LENGTH + metaLength)\n    let view = new DataView(header)\n    let offset = 0\n\n    view.setUint8(offset++, this.KINDS.push) // kind\n    view.setUint8(offset++, join_ref.length)\n    view.setUint8(offset++, ref.length)\n    view.setUint8(offset++, topic.length)\n    view.setUint8(offset++, event.length)\n    Array.from(join_ref, char => view.setUint8(offset++, char.charCodeAt(0)))\n    Array.from(ref, char => view.setUint8(offset++, char.charCodeAt(0)))\n    Array.from(topic, char => view.setUint8(offset++, char.charCodeAt(0)))\n    Array.from(event, char => view.setUint8(offset++, char.charCodeAt(0)))\n\n    var combined = new Uint8Array(header.byteLength + payload.byteLength)\n    combined.set(new Uint8Array(header), 0)\n    combined.set(new Uint8Array(payload), header.byteLength)\n\n    return combined.buffer\n  },\n\n  binaryDecode(buffer){\n    let view = new DataView(buffer)\n    let kind = view.getUint8(0)\n    let decoder = new TextDecoder()\n    switch(kind){\n      case this.KINDS.push: return this.decodePush(buffer, view, decoder)\n      case this.KINDS.reply: return this.decodeReply(buffer, view, decoder)\n      case this.KINDS.broadcast: return this.decodeBroadcast(buffer, view, decoder)\n    }\n  },\n\n  decodePush(buffer, view, decoder){\n    let joinRefSize = view.getUint8(1)\n    let topicSize = view.getUint8(2)\n    let eventSize = view.getUint8(3)\n    let offset = this.HEADER_LENGTH + this.META_LENGTH - 1 // pushes have no ref\n    let joinRef = decoder.decode(buffer.slice(offset, offset + joinRefSize))\n    offset = offset + joinRefSize\n    let topic = decoder.decode(buffer.slice(offset, offset + topicSize))\n    offset = offset + topicSize\n    let event = decoder.decode(buffer.slice(offset, offset + eventSize))\n    offset = offset + eventSize\n    let data = buffer.slice(offset, buffer.byteLength)\n    return {join_ref: joinRef, ref: null, topic: topic, event: event, payload: data}\n  },\n\n  decodeReply(buffer, view, decoder){\n    let joinRefSize = view.getUint8(1)\n    let refSize = view.getUint8(2)\n    let topicSize = view.getUint8(3)\n    let eventSize = view.getUint8(4)\n    let offset = this.HEADER_LENGTH + this.META_LENGTH\n    let joinRef = decoder.decode(buffer.slice(offset, offset + joinRefSize))\n    offset = offset + joinRefSize\n    let ref = decoder.decode(buffer.slice(offset, offset + refSize))\n    offset = offset + refSize\n    let topic = decoder.decode(buffer.slice(offset, offset + topicSize))\n    offset = offset + topicSize\n    let event = decoder.decode(buffer.slice(offset, offset + eventSize))\n    offset = offset + eventSize\n    let data = buffer.slice(offset, buffer.byteLength)\n    let payload = {status: event, response: data}\n    return {join_ref: joinRef, ref: ref, topic: topic, event: CHANNEL_EVENTS.reply, payload: payload}\n  },\n\n  decodeBroadcast(buffer, view, decoder){\n    let topicSize = view.getUint8(1)\n    let eventSize = view.getUint8(2)\n    let offset = this.HEADER_LENGTH + 2\n    let topic = decoder.decode(buffer.slice(offset, offset + topicSize))\n    offset = offset + topicSize\n    let event = decoder.decode(buffer.slice(offset, offset + eventSize))\n    offset = offset + eventSize\n    let data = buffer.slice(offset, buffer.byteLength)\n\n    return {join_ref: null, ref: null, topic: topic, event: event, payload: data}\n  }\n}\n", "import {\n  global,\n  phxWindow,\n  CHANNEL_EVENTS,\n  DEFAULT_TIMEOUT,\n  DEFAULT_VSN,\n  SOCKET_STATES,\n  TRANSPORTS,\n  WS_CLOSE_NORMAL\n} from \"./constants\"\n\nimport {\n  closure\n} from \"./utils\"\n\nimport Ajax from \"./ajax\"\nimport Channel from \"./channel\"\nimport LongPoll from \"./longpoll\"\nimport Serializer from \"./serializer\"\nimport Timer from \"./timer\"\n\n/** Initializes the Socket *\n *\n * For IE8 support use an ES5-shim (https://github.com/es-shims/es5-shim)\n *\n * @param {string} endPoint - The string WebSocket endpoint, ie, `\"ws://example.com/socket\"`,\n *                                               `\"wss://example.com\"`\n *                                               `\"/socket\"` (inherited host & protocol)\n * @param {Object} [opts] - Optional configuration\n * @param {Function} [opts.transport] - The Websocket Transport, for example WebSocket or Phoenix.LongPoll.\n *\n * Defaults to WebSocket with automatic LongPoll fallback if WebSocket is not defined.\n * To fallback to LongPoll when WebSocket attempts fail, use `longPollFallbackMs: 2500`.\n *\n * @param {Function} [opts.longPollFallbackMs] - The millisecond time to attempt the primary transport\n * before falling back to the LongPoll transport. Disabled by default.\n *\n * @param {Function} [opts.debug] - When true, enables debug logging. Default false.\n *\n * @param {Function} [opts.encode] - The function to encode outgoing messages.\n *\n * Defaults to JSON encoder.\n *\n * @param {Function} [opts.decode] - The function to decode incoming messages.\n *\n * Defaults to JSON:\n *\n * ```javascript\n * (payload, callback) => callback(JSON.parse(payload))\n * ```\n *\n * @param {number} [opts.timeout] - The default timeout in milliseconds to trigger push timeouts.\n *\n * Defaults `DEFAULT_TIMEOUT`\n * @param {number} [opts.heartbeatIntervalMs] - The millisec interval to send a heartbeat message\n * @param {number} [opts.reconnectAfterMs] - The optional function that returns the millisec\n * socket reconnect interval.\n *\n * Defaults to stepped backoff of:\n *\n * ```javascript\n * function(tries){\n *   return [10, 50, 100, 150, 200, 250, 500, 1000, 2000][tries - 1] || 5000\n * }\n * ````\n *\n * @param {number} [opts.rejoinAfterMs] - The optional function that returns the millisec\n * rejoin interval for individual channels.\n *\n * ```javascript\n * function(tries){\n *   return [1000, 2000, 5000][tries - 1] || 10000\n * }\n * ````\n *\n * @param {Function} [opts.logger] - The optional function for specialized logging, ie:\n *\n * ```javascript\n * function(kind, msg, data) {\n *   console.log(`${kind}: ${msg}`, data)\n * }\n * ```\n *\n * @param {number} [opts.longpollerTimeout] - The maximum timeout of a long poll AJAX request.\n *\n * Defaults to 20s (double the server long poll timer).\n *\n * @param {(Object|function)} [opts.params] - The optional params to pass when connecting\n * @param {string} [opts.binaryType] - The binary type to use for binary WebSocket frames.\n *\n * Defaults to \"arraybuffer\"\n *\n * @param {vsn} [opts.vsn] - The serializer's protocol version to send on connect.\n *\n * Defaults to DEFAULT_VSN.\n *\n * @param {Object} [opts.sessionStorage] - An optional Storage compatible object\n * Phoenix uses sessionStorage for longpoll fallback history. Overriding the store is\n * useful when Phoenix won't have access to `sessionStorage`. For example, This could\n * happen if a site loads a cross-domain channel in an iframe. Example usage:\n *\n *     class InMemoryStorage {\n *       constructor() { this.storage = {} }\n *       getItem(keyName) { return this.storage[keyName] || null }\n *       removeItem(keyName) { delete this.storage[keyName] }\n *       setItem(keyName, keyValue) { this.storage[keyName] = keyValue }\n *     }\n *\n*/\nexport default class Socket {\n  constructor(endPoint, opts = {}){\n    this.stateChangeCallbacks = {open: [], close: [], error: [], message: []}\n    this.channels = []\n    this.sendBuffer = []\n    this.ref = 0\n    this.timeout = opts.timeout || DEFAULT_TIMEOUT\n    this.transport = opts.transport || global.WebSocket || LongPoll\n    this.primaryPassedHealthCheck = false\n    this.longPollFallbackMs = opts.longPollFallbackMs\n    this.fallbackTimer = null\n    this.sessionStore = opts.sessionStorage || (global && global.sessionStorage)\n    this.establishedConnections = 0\n    this.defaultEncoder = Serializer.encode.bind(Serializer)\n    this.defaultDecoder = Serializer.decode.bind(Serializer)\n    this.closeWasClean = false\n    this.binaryType = opts.binaryType || \"arraybuffer\"\n    this.connectClock = 1\n    if(this.transport !== LongPoll){\n      this.encode = opts.encode || this.defaultEncoder\n      this.decode = opts.decode || this.defaultDecoder\n    } else {\n      this.encode = this.defaultEncoder\n      this.decode = this.defaultDecoder\n    }\n    let awaitingConnectionOnPageShow = null\n    if(phxWindow && phxWindow.addEventListener){\n      phxWindow.addEventListener(\"pagehide\", _e => {\n        if(this.conn){\n          this.disconnect()\n          awaitingConnectionOnPageShow = this.connectClock\n        }\n      })\n      phxWindow.addEventListener(\"pageshow\", _e => {\n        if(awaitingConnectionOnPageShow === this.connectClock){\n          awaitingConnectionOnPageShow = null\n          this.connect()\n        }\n      })\n    }\n    this.heartbeatIntervalMs = opts.heartbeatIntervalMs || 30000\n    this.rejoinAfterMs = (tries) => {\n      if(opts.rejoinAfterMs){\n        return opts.rejoinAfterMs(tries)\n      } else {\n        return [1000, 2000, 5000][tries - 1] || 10000\n      }\n    }\n    this.reconnectAfterMs = (tries) => {\n      if(opts.reconnectAfterMs){\n        return opts.reconnectAfterMs(tries)\n      } else {\n        return [10, 50, 100, 150, 200, 250, 500, 1000, 2000][tries - 1] || 5000\n      }\n    }\n    this.logger = opts.logger || null\n    if(!this.logger && opts.debug){\n      this.logger = (kind, msg, data) => { console.log(`${kind}: ${msg}`, data) }\n    }\n    this.longpollerTimeout = opts.longpollerTimeout || 20000\n    this.params = closure(opts.params || {})\n    this.endPoint = `${endPoint}/${TRANSPORTS.websocket}`\n    this.vsn = opts.vsn || DEFAULT_VSN\n    this.heartbeatTimeoutTimer = null\n    this.heartbeatTimer = null\n    this.pendingHeartbeatRef = null\n    this.reconnectTimer = new Timer(() => {\n      this.teardown(() => this.connect())\n    }, this.reconnectAfterMs)\n  }\n\n  /**\n   * Returns the LongPoll transport reference\n   */\n  getLongPollTransport(){ return LongPoll }\n\n  /**\n   * Disconnects and replaces the active transport\n   *\n   * @param {Function} newTransport - The new transport class to instantiate\n   *\n   */\n  replaceTransport(newTransport){\n    this.connectClock++\n    this.closeWasClean = true\n    clearTimeout(this.fallbackTimer)\n    this.reconnectTimer.reset()\n    if(this.conn){\n      this.conn.close()\n      this.conn = null\n    }\n    this.transport = newTransport\n  }\n\n  /**\n   * Returns the socket protocol\n   *\n   * @returns {string}\n   */\n  protocol(){ return location.protocol.match(/^https/) ? \"wss\" : \"ws\" }\n\n  /**\n   * The fully qualified socket url\n   *\n   * @returns {string}\n   */\n  endPointURL(){\n    let uri = Ajax.appendParams(\n      Ajax.appendParams(this.endPoint, this.params()), {vsn: this.vsn})\n    if(uri.charAt(0) !== \"/\"){ return uri }\n    if(uri.charAt(1) === \"/\"){ return `${this.protocol()}:${uri}` }\n\n    return `${this.protocol()}://${location.host}${uri}`\n  }\n\n  /**\n   * Disconnects the socket\n   *\n   * See https://developer.mozilla.org/en-US/docs/Web/API/CloseEvent#Status_codes for valid status codes.\n   *\n   * @param {Function} callback - Optional callback which is called after socket is disconnected.\n   * @param {integer} code - A status code for disconnection (Optional).\n   * @param {string} reason - A textual description of the reason to disconnect. (Optional)\n   */\n  disconnect(callback, code, reason){\n    this.connectClock++\n    this.closeWasClean = true\n    clearTimeout(this.fallbackTimer)\n    this.reconnectTimer.reset()\n    this.teardown(callback, code, reason)\n  }\n\n  /**\n   *\n   * @param {Object} params - The params to send when connecting, for example `{user_id: userToken}`\n   *\n   * Passing params to connect is deprecated; pass them in the Socket constructor instead:\n   * `new Socket(\"/socket\", {params: {user_id: userToken}})`.\n   */\n  connect(params){\n    if(params){\n      console && console.log(\"passing params to connect is deprecated. Instead pass :params to the Socket constructor\")\n      this.params = closure(params)\n    }\n    if(this.conn){ return }\n    if(this.longPollFallbackMs && this.transport !== LongPoll){\n      this.connectWithFallback(LongPoll, this.longPollFallbackMs)\n    } else {\n      this.transportConnect()\n    }\n  }\n\n  /**\n   * Logs the message. Override `this.logger` for specialized logging. noops by default\n   * @param {string} kind\n   * @param {string} msg\n   * @param {Object} data\n   */\n  log(kind, msg, data){ this.logger && this.logger(kind, msg, data) }\n\n  /**\n   * Returns true if a logger has been set on this socket.\n   */\n  hasLogger(){ return this.logger !== null }\n\n  /**\n   * Registers callbacks for connection open events\n   *\n   * @example socket.onOpen(function(){ console.info(\"the socket was opened\") })\n   *\n   * @param {Function} callback\n   */\n  onOpen(callback){\n    let ref = this.makeRef()\n    this.stateChangeCallbacks.open.push([ref, callback])\n    return ref\n  }\n\n  /**\n   * Registers callbacks for connection close events\n   * @param {Function} callback\n   */\n  onClose(callback){\n    let ref = this.makeRef()\n    this.stateChangeCallbacks.close.push([ref, callback])\n    return ref\n  }\n\n  /**\n   * Registers callbacks for connection error events\n   *\n   * @example socket.onError(function(error){ alert(\"An error occurred\") })\n   *\n   * @param {Function} callback\n   */\n  onError(callback){\n    let ref = this.makeRef()\n    this.stateChangeCallbacks.error.push([ref, callback])\n    return ref\n  }\n\n  /**\n   * Registers callbacks for connection message events\n   * @param {Function} callback\n   */\n  onMessage(callback){\n    let ref = this.makeRef()\n    this.stateChangeCallbacks.message.push([ref, callback])\n    return ref\n  }\n\n  /**\n   * Pings the server and invokes the callback with the RTT in milliseconds\n   * @param {Function} callback\n   *\n   * Returns true if the ping was pushed or false if unable to be pushed.\n   */\n  ping(callback){\n    if(!this.isConnected()){ return false }\n    let ref = this.makeRef()\n    let startTime = Date.now()\n    this.push({topic: \"phoenix\", event: \"heartbeat\", payload: {}, ref: ref})\n    let onMsgRef = this.onMessage(msg => {\n      if(msg.ref === ref){\n        this.off([onMsgRef])\n        callback(Date.now() - startTime)\n      }\n    })\n    return true\n  }\n\n  /**\n   * @private\n   */\n\n  transportConnect(){\n    this.connectClock++\n    this.closeWasClean = false\n    this.conn = new this.transport(this.endPointURL())\n    this.conn.binaryType = this.binaryType\n    this.conn.timeout = this.longpollerTimeout\n    this.conn.onopen = () => this.onConnOpen()\n    this.conn.onerror = error => this.onConnError(error)\n    this.conn.onmessage = event => this.onConnMessage(event)\n    this.conn.onclose = event => this.onConnClose(event)\n  }\n\n  getSession(key){ return this.sessionStore && this.sessionStore.getItem(key) }\n\n  storeSession(key, val){ this.sessionStore && this.sessionStore.setItem(key, val) }\n\n  connectWithFallback(fallbackTransport, fallbackThreshold = 2500){\n    clearTimeout(this.fallbackTimer)\n    let established = false\n    let primaryTransport = true\n    let openRef, errorRef\n    let fallback = (reason) => {\n      this.log(\"transport\", `falling back to ${fallbackTransport.name}...`, reason)\n      this.off([openRef, errorRef])\n      primaryTransport = false\n      this.replaceTransport(fallbackTransport)\n      this.transportConnect()\n    }\n    if(this.getSession(`phx:fallback:${fallbackTransport.name}`)){ return fallback(\"memorized\") }\n\n    this.fallbackTimer = setTimeout(fallback, fallbackThreshold)\n\n    errorRef = this.onError(reason => {\n      this.log(\"transport\", \"error\", reason)\n      if(primaryTransport && !established){\n        clearTimeout(this.fallbackTimer)\n        fallback(reason)\n      }\n    })\n    this.onOpen(() => {\n      established = true\n      if(!primaryTransport){\n        // only memorize LP if we never connected to primary\n        if(!this.primaryPassedHealthCheck){ this.storeSession(`phx:fallback:${fallbackTransport.name}`, \"true\") }\n        return this.log(\"transport\", `established ${fallbackTransport.name} fallback`)\n      }\n      // if we've established primary, give the fallback a new period to attempt ping\n      clearTimeout(this.fallbackTimer)\n      this.fallbackTimer = setTimeout(fallback, fallbackThreshold)\n      this.ping(rtt => {\n        this.log(\"transport\", \"connected to primary after\", rtt)\n        this.primaryPassedHealthCheck = true\n        clearTimeout(this.fallbackTimer)\n      })\n    })\n    this.transportConnect()\n  }\n\n  clearHeartbeats(){\n    clearTimeout(this.heartbeatTimer)\n    clearTimeout(this.heartbeatTimeoutTimer)\n  }\n\n  onConnOpen(){\n    if(this.hasLogger()) this.log(\"transport\", `${this.transport.name} connected to ${this.endPointURL()}`)\n    this.closeWasClean = false\n    this.establishedConnections++\n    this.flushSendBuffer()\n    this.reconnectTimer.reset()\n    this.resetHeartbeat()\n    this.stateChangeCallbacks.open.forEach(([, callback]) => callback())\n  }\n\n  /**\n   * @private\n   */\n\n  heartbeatTimeout(){\n    if(this.pendingHeartbeatRef){\n      this.pendingHeartbeatRef = null\n      if(this.hasLogger()){ this.log(\"transport\", \"heartbeat timeout. Attempting to re-establish connection\") }\n      this.triggerChanError()\n      this.closeWasClean = false\n      this.teardown(() => this.reconnectTimer.scheduleTimeout(), WS_CLOSE_NORMAL, \"heartbeat timeout\")\n    }\n  }\n\n  resetHeartbeat(){\n    if(this.conn && this.conn.skipHeartbeat){ return }\n    this.pendingHeartbeatRef = null\n    this.clearHeartbeats()\n    this.heartbeatTimer = setTimeout(() => this.sendHeartbeat(), this.heartbeatIntervalMs)\n  }\n\n  teardown(callback, code, reason){\n    if(!this.conn){\n      return callback && callback()\n    }\n\n    this.waitForBufferDone(() => {\n      if(this.conn){\n        if(code){ this.conn.close(code, reason || \"\") } else { this.conn.close() }\n      }\n\n      this.waitForSocketClosed(() => {\n        if(this.conn){\n          this.conn.onopen = function (){ } // noop\n          this.conn.onerror = function (){ } // noop\n          this.conn.onmessage = function (){ } // noop\n          this.conn.onclose = function (){ } // noop\n          this.conn = null\n        }\n\n        callback && callback()\n      })\n    })\n  }\n\n  waitForBufferDone(callback, tries = 1){\n    if(tries === 5 || !this.conn || !this.conn.bufferedAmount){\n      callback()\n      return\n    }\n\n    setTimeout(() => {\n      this.waitForBufferDone(callback, tries + 1)\n    }, 150 * tries)\n  }\n\n  waitForSocketClosed(callback, tries = 1){\n    if(tries === 5 || !this.conn || this.conn.readyState === SOCKET_STATES.closed){\n      callback()\n      return\n    }\n\n    setTimeout(() => {\n      this.waitForSocketClosed(callback, tries + 1)\n    }, 150 * tries)\n  }\n\n  onConnClose(event){\n    let closeCode = event && event.code\n    if(this.hasLogger()) this.log(\"transport\", \"close\", event)\n    this.triggerChanError()\n    this.clearHeartbeats()\n    if(!this.closeWasClean && closeCode !== 1000){\n      this.reconnectTimer.scheduleTimeout()\n    }\n    this.stateChangeCallbacks.close.forEach(([, callback]) => callback(event))\n  }\n\n  /**\n   * @private\n   */\n  onConnError(error){\n    if(this.hasLogger()) this.log(\"transport\", error)\n    let transportBefore = this.transport\n    let establishedBefore = this.establishedConnections\n    this.stateChangeCallbacks.error.forEach(([, callback]) => {\n      callback(error, transportBefore, establishedBefore)\n    })\n    if(transportBefore === this.transport || establishedBefore > 0){\n      this.triggerChanError()\n    }\n  }\n\n  /**\n   * @private\n   */\n  triggerChanError(){\n    this.channels.forEach(channel => {\n      if(!(channel.isErrored() || channel.isLeaving() || channel.isClosed())){\n        channel.trigger(CHANNEL_EVENTS.error)\n      }\n    })\n  }\n\n  /**\n   * @returns {string}\n   */\n  connectionState(){\n    switch(this.conn && this.conn.readyState){\n      case SOCKET_STATES.connecting: return \"connecting\"\n      case SOCKET_STATES.open: return \"open\"\n      case SOCKET_STATES.closing: return \"closing\"\n      default: return \"closed\"\n    }\n  }\n\n  /**\n   * @returns {boolean}\n   */\n  isConnected(){ return this.connectionState() === \"open\" }\n\n  /**\n   * @private\n   *\n   * @param {Channel}\n   */\n  remove(channel){\n    this.off(channel.stateChangeRefs)\n    this.channels = this.channels.filter(c => c !== channel)\n  }\n\n  /**\n   * Removes `onOpen`, `onClose`, `onError,` and `onMessage` registrations.\n   *\n   * @param {refs} - list of refs returned by calls to\n   *                 `onOpen`, `onClose`, `onError,` and `onMessage`\n   */\n  off(refs){\n    for(let key in this.stateChangeCallbacks){\n      this.stateChangeCallbacks[key] = this.stateChangeCallbacks[key].filter(([ref]) => {\n        return refs.indexOf(ref) === -1\n      })\n    }\n  }\n\n  /**\n   * Initiates a new channel for the given topic\n   *\n   * @param {string} topic\n   * @param {Object} chanParams - Parameters for the channel\n   * @returns {Channel}\n   */\n  channel(topic, chanParams = {}){\n    let chan = new Channel(topic, chanParams, this)\n    this.channels.push(chan)\n    return chan\n  }\n\n  /**\n   * @param {Object} data\n   */\n  push(data){\n    if(this.hasLogger()){\n      let {topic, event, payload, ref, join_ref} = data\n      this.log(\"push\", `${topic} ${event} (${join_ref}, ${ref})`, payload)\n    }\n\n    if(this.isConnected()){\n      this.encode(data, result => this.conn.send(result))\n    } else {\n      this.sendBuffer.push(() => this.encode(data, result => this.conn.send(result)))\n    }\n  }\n\n  /**\n   * Return the next message ref, accounting for overflows\n   * @returns {string}\n   */\n  makeRef(){\n    let newRef = this.ref + 1\n    if(newRef === this.ref){ this.ref = 0 } else { this.ref = newRef }\n\n    return this.ref.toString()\n  }\n\n  sendHeartbeat(){\n    if(this.pendingHeartbeatRef && !this.isConnected()){ return }\n    this.pendingHeartbeatRef = this.makeRef()\n    this.push({topic: \"phoenix\", event: \"heartbeat\", payload: {}, ref: this.pendingHeartbeatRef})\n    this.heartbeatTimeoutTimer = setTimeout(() => this.heartbeatTimeout(), this.heartbeatIntervalMs)\n  }\n\n  flushSendBuffer(){\n    if(this.isConnected() && this.sendBuffer.length > 0){\n      this.sendBuffer.forEach(callback => callback())\n      this.sendBuffer = []\n    }\n  }\n\n  onConnMessage(rawMessage){\n    this.decode(rawMessage.data, msg => {\n      let {topic, event, payload, ref, join_ref} = msg\n      if(ref && ref === this.pendingHeartbeatRef){\n        this.clearHeartbeats()\n        this.pendingHeartbeatRef = null\n        this.heartbeatTimer = setTimeout(() => this.sendHeartbeat(), this.heartbeatIntervalMs)\n      }\n\n      if(this.hasLogger()) this.log(\"receive\", `${payload.status || \"\"} ${topic} ${event} ${ref && \"(\" + ref + \")\" || \"\"}`, payload)\n\n      for(let i = 0; i < this.channels.length; i++){\n        const channel = this.channels[i]\n        if(!channel.isMember(topic, event, payload, join_ref)){ continue }\n        channel.trigger(event, payload, ref, join_ref)\n      }\n\n      for(let i = 0; i < this.stateChangeCallbacks.message.length; i++){\n        let [, callback] = this.stateChangeCallbacks.message[i]\n        callback(msg)\n      }\n    })\n  }\n\n  leaveOpenTopic(topic){\n    let dupChannel = this.channels.find(c => c.topic === topic && (c.isJoined() || c.isJoining()))\n    if(dupChannel){\n      if(this.hasLogger()) this.log(\"transport\", `leaving duplicate topic \"${topic}\"`)\n      dupChannel.leave()\n    }\n  }\n}\n"],
+  "mappings": 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   "names": ["closure"]
 }
diff --git a/priv/static/phoenix.js b/priv/static/phoenix.js
index e97d2c51f5..7aefa63002 100644
--- a/priv/static/phoenix.js
+++ b/priv/static/phoenix.js
@@ -1029,7 +1029,7 @@ var Phoenix = (() => {
       this.primaryPassedHealthCheck = false;
       this.longPollFallbackMs = opts.longPollFallbackMs;
       this.fallbackTimer = null;
-      this.sessionStore = opts.sessionStorage || global.sessionStorage;
+      this.sessionStore = opts.sessionStorage || global && global.sessionStorage;
       this.establishedConnections = 0;
       this.defaultEncoder = serializer_default.encode.bind(serializer_default);
       this.defaultDecoder = serializer_default.decode.bind(serializer_default);
diff --git a/priv/static/phoenix.min.js b/priv/static/phoenix.min.js
index ab5df84e17..288fbb929c 100644
--- a/priv/static/phoenix.min.js
+++ b/priv/static/phoenix.min.js
@@ -1,2 +1,2 @@
-var Phoenix=(()=>{var x=Object.defineProperty;var $=Object.getOwnPropertyDescriptor;var M=Object.getOwnPropertyNames;var P=Object.prototype.hasOwnProperty;var D=(a,e)=>{for(var t in e)x(a,t,{get:e[t],enumerable:!0})},U=(a,e,t,i)=>{if(e&&typeof e=="object"||typeof e=="function")for(let s of M(e))!P.call(a,s)&&s!==t&&x(a,s,{get:()=>e[s],enumerable:!(i=$(e,s))||i.enumerable});return a};var J=a=>U(x({},"__esModule",{value:!0}),a);var F={};D(F,{Channel:()=>y,LongPoll:()=>m,Presence:()=>g,Serializer:()=>j,Socket:()=>w});var v=a=>typeof a=="function"?a:function(){return a};var z=typeof self!="undefined"?self:null,k=typeof window!="undefined"?window:null,C=z||k||C,H="2.0.0",d={connecting:0,open:1,closing:2,closed:3},N=1e4,O=1e3,u={closed:"closed",errored:"errored",joined:"joined",joining:"joining",leaving:"leaving"},p={close:"phx_close",error:"phx_error",join:"phx_join",reply:"phx_reply",leave:"phx_leave"},A={longpoll:"longpoll",websocket:"websocket"},B={complete:4};var b=class{constructor(e,t,i,s){this.channel=e,this.event=t,this.payload=i||function(){return{}},this.receivedResp=null,this.timeout=s,this.timeoutTimer=null,this.recHooks=[],this.sent=!1}resend(e){this.timeout=e,this.reset(),this.send()}send(){this.hasReceived("timeout")||(this.startTimeout(),this.sent=!0,this.channel.socket.push({topic:this.channel.topic,event:this.event,payload:this.payload(),ref:this.ref,join_ref:this.channel.joinRef()}))}receive(e,t){return this.hasReceived(e)&&t(this.receivedResp.response),this.recHooks.push({status:e,callback:t}),this}reset(){this.cancelRefEvent(),this.ref=null,this.refEvent=null,this.receivedResp=null,this.sent=!1}matchReceive({status:e,response:t,_ref:i}){this.recHooks.filter(s=>s.status===e).forEach(s=>s.callback(t))}cancelRefEvent(){this.refEvent&&this.channel.off(this.refEvent)}cancelTimeout(){clearTimeout(this.timeoutTimer),this.timeoutTimer=null}startTimeout(){this.timeoutTimer&&this.cancelTimeout(),this.ref=this.channel.socket.makeRef(),this.refEvent=this.channel.replyEventName(this.ref),this.channel.on(this.refEvent,e=>{this.cancelRefEvent(),this.cancelTimeout(),this.receivedResp=e,this.matchReceive(e)}),this.timeoutTimer=setTimeout(()=>{this.trigger("timeout",{})},this.timeout)}hasReceived(e){return this.receivedResp&&this.receivedResp.status===e}trigger(e,t){this.channel.trigger(this.refEvent,{status:e,response:t})}};var R=class{constructor(e,t){this.callback=e,this.timerCalc=t,this.timer=null,this.tries=0}reset(){this.tries=0,clearTimeout(this.timer)}scheduleTimeout(){clearTimeout(this.timer),this.timer=setTimeout(()=>{this.tries=this.tries+1,this.callback()},this.timerCalc(this.tries+1))}};var y=class{constructor(e,t,i){this.state=u.closed,this.topic=e,this.params=v(t||{}),this.socket=i,this.bindings=[],this.bindingRef=0,this.timeout=this.socket.timeout,this.joinedOnce=!1,this.joinPush=new b(this,p.join,this.params,this.timeout),this.pushBuffer=[],this.stateChangeRefs=[],this.rejoinTimer=new R(()=>{this.socket.isConnected()&&this.rejoin()},this.socket.rejoinAfterMs),this.stateChangeRefs.push(this.socket.onError(()=>this.rejoinTimer.reset())),this.stateChangeRefs.push(this.socket.onOpen(()=>{this.rejoinTimer.reset(),this.isErrored()&&this.rejoin()})),this.joinPush.receive("ok",()=>{this.state=u.joined,this.rejoinTimer.reset(),this.pushBuffer.forEach(s=>s.send()),this.pushBuffer=[]}),this.joinPush.receive("error",()=>{this.state=u.errored,this.socket.isConnected()&&this.rejoinTimer.scheduleTimeout()}),this.onClose(()=>{this.rejoinTimer.reset(),this.socket.hasLogger()&&this.socket.log("channel",`close ${this.topic} ${this.joinRef()}`),this.state=u.closed,this.socket.remove(this)}),this.onError(s=>{this.socket.hasLogger()&&this.socket.log("channel",`error ${this.topic}`,s),this.isJoining()&&this.joinPush.reset(),this.state=u.errored,this.socket.isConnected()&&this.rejoinTimer.scheduleTimeout()}),this.joinPush.receive("timeout",()=>{this.socket.hasLogger()&&this.socket.log("channel",`timeout ${this.topic} (${this.joinRef()})`,this.joinPush.timeout),new b(this,p.leave,v({}),this.timeout).send(),this.state=u.errored,this.joinPush.reset(),this.socket.isConnected()&&this.rejoinTimer.scheduleTimeout()}),this.on(p.reply,(s,o)=>{this.trigger(this.replyEventName(o),s)})}join(e=this.timeout){if(this.joinedOnce)throw new Error("tried to join multiple times. 'join' can only be called a single time per channel instance");return this.timeout=e,this.joinedOnce=!0,this.rejoin(),this.joinPush}onClose(e){this.on(p.close,e)}onError(e){return this.on(p.error,t=>e(t))}on(e,t){let i=this.bindingRef++;return this.bindings.push({event:e,ref:i,callback:t}),i}off(e,t){this.bindings=this.bindings.filter(i=>!(i.event===e&&(typeof t=="undefined"||t===i.ref)))}canPush(){return this.socket.isConnected()&&this.isJoined()}push(e,t,i=this.timeout){if(t=t||{},!this.joinedOnce)throw new Error(`tried to push '${e}' to '${this.topic}' before joining. Use channel.join() before pushing events`);let s=new b(this,e,function(){return t},i);return this.canPush()?s.send():(s.startTimeout(),this.pushBuffer.push(s)),s}leave(e=this.timeout){this.rejoinTimer.reset(),this.joinPush.cancelTimeout(),this.state=u.leaving;let t=()=>{this.socket.hasLogger()&&this.socket.log("channel",`leave ${this.topic}`),this.trigger(p.close,"leave")},i=new b(this,p.leave,v({}),e);return i.receive("ok",()=>t()).receive("timeout",()=>t()),i.send(),this.canPush()||i.trigger("ok",{}),i}onMessage(e,t,i){return t}isMember(e,t,i,s){return this.topic!==e?!1:s&&s!==this.joinRef()?(this.socket.hasLogger()&&this.socket.log("channel","dropping outdated message",{topic:e,event:t,payload:i,joinRef:s}),!1):!0}joinRef(){return this.joinPush.ref}rejoin(e=this.timeout){this.isLeaving()||(this.socket.leaveOpenTopic(this.topic),this.state=u.joining,this.joinPush.resend(e))}trigger(e,t,i,s){let o=this.onMessage(e,t,i,s);if(t&&!o)throw new Error("channel onMessage callbacks must return the payload, modified or unmodified");let r=this.bindings.filter(n=>n.event===e);for(let n=0;n<r.length;n++)r[n].callback(o,i,s||this.joinRef())}replyEventName(e){return`chan_reply_${e}`}isClosed(){return this.state===u.closed}isErrored(){return this.state===u.errored}isJoined(){return this.state===u.joined}isJoining(){return this.state===u.joining}isLeaving(){return this.state===u.leaving}};var T=class{static request(e,t,i,s,o,r,n){if(C.XDomainRequest){let h=new C.XDomainRequest;return this.xdomainRequest(h,e,t,s,o,r,n)}else{let h=new C.XMLHttpRequest;return this.xhrRequest(h,e,t,i,s,o,r,n)}}static xdomainRequest(e,t,i,s,o,r,n){return e.timeout=o,e.open(t,i),e.onload=()=>{let h=this.parseJSON(e.responseText);n&&n(h)},r&&(e.ontimeout=r),e.onprogress=()=>{},e.send(s),e}static xhrRequest(e,t,i,s,o,r,n,h){return e.open(t,i,!0),e.timeout=r,e.setRequestHeader("Content-Type",s),e.onerror=()=>h&&h(null),e.onreadystatechange=()=>{if(e.readyState===B.complete&&h){let l=this.parseJSON(e.responseText);h(l)}},n&&(e.ontimeout=n),e.send(o),e}static parseJSON(e){if(!e||e==="")return null;try{return JSON.parse(e)}catch(t){return console&&console.log("failed to parse JSON response",e),null}}static serialize(e,t){let i=[];for(var s in e){if(!Object.prototype.hasOwnProperty.call(e,s))continue;let o=t?`${t}[${s}]`:s,r=e[s];typeof r=="object"?i.push(this.serialize(r,o)):i.push(encodeURIComponent(o)+"="+encodeURIComponent(r))}return i.join("&")}static appendParams(e,t){if(Object.keys(t).length===0)return e;let i=e.match(/\?/)?"&":"?";return`${e}${i}${this.serialize(t)}`}};var I=a=>{let e="",t=new Uint8Array(a),i=t.byteLength;for(let s=0;s<i;s++)e+=String.fromCharCode(t[s]);return btoa(e)},m=class{constructor(e){this.endPoint=null,this.token=null,this.skipHeartbeat=!0,this.reqs=new Set,this.awaitingBatchAck=!1,this.currentBatch=null,this.currentBatchTimer=null,this.batchBuffer=[],this.onopen=function(){},this.onerror=function(){},this.onmessage=function(){},this.onclose=function(){},this.pollEndpoint=this.normalizeEndpoint(e),this.readyState=d.connecting,setTimeout(()=>this.poll(),0)}normalizeEndpoint(e){return e.replace("ws://","http://").replace("wss://","https://").replace(new RegExp("(.*)/"+A.websocket),"$1/"+A.longpoll)}endpointURL(){return T.appendParams(this.pollEndpoint,{token:this.token})}closeAndRetry(e,t,i){this.close(e,t,i),this.readyState=d.connecting}ontimeout(){this.onerror("timeout"),this.closeAndRetry(1005,"timeout",!1)}isActive(){return this.readyState===d.open||this.readyState===d.connecting}poll(){this.ajax("GET","application/json",null,()=>this.ontimeout(),e=>{if(e){var{status:t,token:i,messages:s}=e;this.token=i}else t=0;switch(t){case 200:s.forEach(o=>{setTimeout(()=>this.onmessage({data:o}),0)}),this.poll();break;case 204:this.poll();break;case 410:this.readyState=d.open,this.onopen({}),this.poll();break;case 403:this.onerror(403),this.close(1008,"forbidden",!1);break;case 0:case 500:this.onerror(500),this.closeAndRetry(1011,"internal server error",500);break;default:throw new Error(`unhandled poll status ${t}`)}})}send(e){typeof e!="string"&&(e=I(e)),this.currentBatch?this.currentBatch.push(e):this.awaitingBatchAck?this.batchBuffer.push(e):(this.currentBatch=[e],this.currentBatchTimer=setTimeout(()=>{this.batchSend(this.currentBatch),this.currentBatch=null},0))}batchSend(e){this.awaitingBatchAck=!0,this.ajax("POST","application/x-ndjson",e.join(`
-`),()=>this.onerror("timeout"),t=>{this.awaitingBatchAck=!1,!t||t.status!==200?(this.onerror(t&&t.status),this.closeAndRetry(1011,"internal server error",!1)):this.batchBuffer.length>0&&(this.batchSend(this.batchBuffer),this.batchBuffer=[])})}close(e,t,i){for(let o of this.reqs)o.abort();this.readyState=d.closed;let s=Object.assign({code:1e3,reason:void 0,wasClean:!0},{code:e,reason:t,wasClean:i});this.batchBuffer=[],clearTimeout(this.currentBatchTimer),this.currentBatchTimer=null,typeof CloseEvent!="undefined"?this.onclose(new CloseEvent("close",s)):this.onclose(s)}ajax(e,t,i,s,o){let r,n=()=>{this.reqs.delete(r),s()};r=T.request(e,this.endpointURL(),t,i,this.timeout,n,h=>{this.reqs.delete(r),this.isActive()&&o(h)}),this.reqs.add(r)}};var g=class{constructor(e,t={}){let i=t.events||{state:"presence_state",diff:"presence_diff"};this.state={},this.pendingDiffs=[],this.channel=e,this.joinRef=null,this.caller={onJoin:function(){},onLeave:function(){},onSync:function(){}},this.channel.on(i.state,s=>{let{onJoin:o,onLeave:r,onSync:n}=this.caller;this.joinRef=this.channel.joinRef(),this.state=g.syncState(this.state,s,o,r),this.pendingDiffs.forEach(h=>{this.state=g.syncDiff(this.state,h,o,r)}),this.pendingDiffs=[],n()}),this.channel.on(i.diff,s=>{let{onJoin:o,onLeave:r,onSync:n}=this.caller;this.inPendingSyncState()?this.pendingDiffs.push(s):(this.state=g.syncDiff(this.state,s,o,r),n())})}onJoin(e){this.caller.onJoin=e}onLeave(e){this.caller.onLeave=e}onSync(e){this.caller.onSync=e}list(e){return g.list(this.state,e)}inPendingSyncState(){return!this.joinRef||this.joinRef!==this.channel.joinRef()}static syncState(e,t,i,s){let o=this.clone(e),r={},n={};return this.map(o,(h,l)=>{t[h]||(n[h]=l)}),this.map(t,(h,l)=>{let f=o[h];if(f){let c=l.metas.map(S=>S.phx_ref),E=f.metas.map(S=>S.phx_ref),L=l.metas.filter(S=>E.indexOf(S.phx_ref)<0),_=f.metas.filter(S=>c.indexOf(S.phx_ref)<0);L.length>0&&(r[h]=l,r[h].metas=L),_.length>0&&(n[h]=this.clone(f),n[h].metas=_)}else r[h]=l}),this.syncDiff(o,{joins:r,leaves:n},i,s)}static syncDiff(e,t,i,s){let{joins:o,leaves:r}=this.clone(t);return i||(i=function(){}),s||(s=function(){}),this.map(o,(n,h)=>{let l=e[n];if(e[n]=this.clone(h),l){let f=e[n].metas.map(E=>E.phx_ref),c=l.metas.filter(E=>f.indexOf(E.phx_ref)<0);e[n].metas.unshift(...c)}i(n,l,h)}),this.map(r,(n,h)=>{let l=e[n];if(!l)return;let f=h.metas.map(c=>c.phx_ref);l.metas=l.metas.filter(c=>f.indexOf(c.phx_ref)<0),s(n,l,h),l.metas.length===0&&delete e[n]}),e}static list(e,t){return t||(t=function(i,s){return s}),this.map(e,(i,s)=>t(i,s))}static map(e,t){return Object.getOwnPropertyNames(e).map(i=>t(i,e[i]))}static clone(e){return JSON.parse(JSON.stringify(e))}};var j={HEADER_LENGTH:1,META_LENGTH:4,KINDS:{push:0,reply:1,broadcast:2},encode(a,e){if(a.payload.constructor===ArrayBuffer)return e(this.binaryEncode(a));{let t=[a.join_ref,a.ref,a.topic,a.event,a.payload];return e(JSON.stringify(t))}},decode(a,e){if(a.constructor===ArrayBuffer)return e(this.binaryDecode(a));{let[t,i,s,o,r]=JSON.parse(a);return e({join_ref:t,ref:i,topic:s,event:o,payload:r})}},binaryEncode(a){let{join_ref:e,ref:t,event:i,topic:s,payload:o}=a,r=this.META_LENGTH+e.length+t.length+s.length+i.length,n=new ArrayBuffer(this.HEADER_LENGTH+r),h=new DataView(n),l=0;h.setUint8(l++,this.KINDS.push),h.setUint8(l++,e.length),h.setUint8(l++,t.length),h.setUint8(l++,s.length),h.setUint8(l++,i.length),Array.from(e,c=>h.setUint8(l++,c.charCodeAt(0))),Array.from(t,c=>h.setUint8(l++,c.charCodeAt(0))),Array.from(s,c=>h.setUint8(l++,c.charCodeAt(0))),Array.from(i,c=>h.setUint8(l++,c.charCodeAt(0)));var f=new Uint8Array(n.byteLength+o.byteLength);return f.set(new Uint8Array(n),0),f.set(new Uint8Array(o),n.byteLength),f.buffer},binaryDecode(a){let e=new DataView(a),t=e.getUint8(0),i=new TextDecoder;switch(t){case this.KINDS.push:return this.decodePush(a,e,i);case this.KINDS.reply:return this.decodeReply(a,e,i);case this.KINDS.broadcast:return this.decodeBroadcast(a,e,i)}},decodePush(a,e,t){let i=e.getUint8(1),s=e.getUint8(2),o=e.getUint8(3),r=this.HEADER_LENGTH+this.META_LENGTH-1,n=t.decode(a.slice(r,r+i));r=r+i;let h=t.decode(a.slice(r,r+s));r=r+s;let l=t.decode(a.slice(r,r+o));r=r+o;let f=a.slice(r,a.byteLength);return{join_ref:n,ref:null,topic:h,event:l,payload:f}},decodeReply(a,e,t){let i=e.getUint8(1),s=e.getUint8(2),o=e.getUint8(3),r=e.getUint8(4),n=this.HEADER_LENGTH+this.META_LENGTH,h=t.decode(a.slice(n,n+i));n=n+i;let l=t.decode(a.slice(n,n+s));n=n+s;let f=t.decode(a.slice(n,n+o));n=n+o;let c=t.decode(a.slice(n,n+r));n=n+r;let E=a.slice(n,a.byteLength),L={status:c,response:E};return{join_ref:h,ref:l,topic:f,event:p.reply,payload:L}},decodeBroadcast(a,e,t){let i=e.getUint8(1),s=e.getUint8(2),o=this.HEADER_LENGTH+2,r=t.decode(a.slice(o,o+i));o=o+i;let n=t.decode(a.slice(o,o+s));o=o+s;let h=a.slice(o,a.byteLength);return{join_ref:null,ref:null,topic:r,event:n,payload:h}}};var w=class{constructor(e,t={}){this.stateChangeCallbacks={open:[],close:[],error:[],message:[]},this.channels=[],this.sendBuffer=[],this.ref=0,this.timeout=t.timeout||N,this.transport=t.transport||C.WebSocket||m,this.primaryPassedHealthCheck=!1,this.longPollFallbackMs=t.longPollFallbackMs,this.fallbackTimer=null,this.sessionStore=t.sessionStorage||C.sessionStorage,this.establishedConnections=0,this.defaultEncoder=j.encode.bind(j),this.defaultDecoder=j.decode.bind(j),this.closeWasClean=!1,this.binaryType=t.binaryType||"arraybuffer",this.connectClock=1,this.transport!==m?(this.encode=t.encode||this.defaultEncoder,this.decode=t.decode||this.defaultDecoder):(this.encode=this.defaultEncoder,this.decode=this.defaultDecoder);let i=null;k&&k.addEventListener&&(k.addEventListener("pagehide",s=>{this.conn&&(this.disconnect(),i=this.connectClock)}),k.addEventListener("pageshow",s=>{i===this.connectClock&&(i=null,this.connect())})),this.heartbeatIntervalMs=t.heartbeatIntervalMs||3e4,this.rejoinAfterMs=s=>t.rejoinAfterMs?t.rejoinAfterMs(s):[1e3,2e3,5e3][s-1]||1e4,this.reconnectAfterMs=s=>t.reconnectAfterMs?t.reconnectAfterMs(s):[10,50,100,150,200,250,500,1e3,2e3][s-1]||5e3,this.logger=t.logger||null,!this.logger&&t.debug&&(this.logger=(s,o,r)=>{console.log(`${s}: ${o}`,r)}),this.longpollerTimeout=t.longpollerTimeout||2e4,this.params=v(t.params||{}),this.endPoint=`${e}/${A.websocket}`,this.vsn=t.vsn||H,this.heartbeatTimeoutTimer=null,this.heartbeatTimer=null,this.pendingHeartbeatRef=null,this.reconnectTimer=new R(()=>{this.teardown(()=>this.connect())},this.reconnectAfterMs)}getLongPollTransport(){return m}replaceTransport(e){this.connectClock++,this.closeWasClean=!0,clearTimeout(this.fallbackTimer),this.reconnectTimer.reset(),this.conn&&(this.conn.close(),this.conn=null),this.transport=e}protocol(){return location.protocol.match(/^https/)?"wss":"ws"}endPointURL(){let e=T.appendParams(T.appendParams(this.endPoint,this.params()),{vsn:this.vsn});return e.charAt(0)!=="/"?e:e.charAt(1)==="/"?`${this.protocol()}:${e}`:`${this.protocol()}://${location.host}${e}`}disconnect(e,t,i){this.connectClock++,this.closeWasClean=!0,clearTimeout(this.fallbackTimer),this.reconnectTimer.reset(),this.teardown(e,t,i)}connect(e){e&&(console&&console.log("passing params to connect is deprecated. Instead pass :params to the Socket constructor"),this.params=v(e)),!this.conn&&(this.longPollFallbackMs&&this.transport!==m?this.connectWithFallback(m,this.longPollFallbackMs):this.transportConnect())}log(e,t,i){this.logger&&this.logger(e,t,i)}hasLogger(){return this.logger!==null}onOpen(e){let t=this.makeRef();return this.stateChangeCallbacks.open.push([t,e]),t}onClose(e){let t=this.makeRef();return this.stateChangeCallbacks.close.push([t,e]),t}onError(e){let t=this.makeRef();return this.stateChangeCallbacks.error.push([t,e]),t}onMessage(e){let t=this.makeRef();return this.stateChangeCallbacks.message.push([t,e]),t}ping(e){if(!this.isConnected())return!1;let t=this.makeRef(),i=Date.now();this.push({topic:"phoenix",event:"heartbeat",payload:{},ref:t});let s=this.onMessage(o=>{o.ref===t&&(this.off([s]),e(Date.now()-i))});return!0}transportConnect(){this.connectClock++,this.closeWasClean=!1,this.conn=new this.transport(this.endPointURL()),this.conn.binaryType=this.binaryType,this.conn.timeout=this.longpollerTimeout,this.conn.onopen=()=>this.onConnOpen(),this.conn.onerror=e=>this.onConnError(e),this.conn.onmessage=e=>this.onConnMessage(e),this.conn.onclose=e=>this.onConnClose(e)}getSession(e){return this.sessionStore&&this.sessionStore.getItem(e)}storeSession(e,t){this.sessionStore&&this.sessionStore.setItem(e,t)}connectWithFallback(e,t=2500){clearTimeout(this.fallbackTimer);let i=!1,s=!0,o,r,n=h=>{this.log("transport",`falling back to ${e.name}...`,h),this.off([o,r]),s=!1,this.replaceTransport(e),this.transportConnect()};if(this.getSession(`phx:fallback:${e.name}`))return n("memorized");this.fallbackTimer=setTimeout(n,t),r=this.onError(h=>{this.log("transport","error",h),s&&!i&&(clearTimeout(this.fallbackTimer),n(h))}),this.onOpen(()=>{if(i=!0,!s)return this.primaryPassedHealthCheck||this.storeSession(`phx:fallback:${e.name}`,"true"),this.log("transport",`established ${e.name} fallback`);clearTimeout(this.fallbackTimer),this.fallbackTimer=setTimeout(n,t),this.ping(h=>{this.log("transport","connected to primary after",h),this.primaryPassedHealthCheck=!0,clearTimeout(this.fallbackTimer)})}),this.transportConnect()}clearHeartbeats(){clearTimeout(this.heartbeatTimer),clearTimeout(this.heartbeatTimeoutTimer)}onConnOpen(){this.hasLogger()&&this.log("transport",`${this.transport.name} connected to ${this.endPointURL()}`),this.closeWasClean=!1,this.establishedConnections++,this.flushSendBuffer(),this.reconnectTimer.reset(),this.resetHeartbeat(),this.stateChangeCallbacks.open.forEach(([,e])=>e())}heartbeatTimeout(){this.pendingHeartbeatRef&&(this.pendingHeartbeatRef=null,this.hasLogger()&&this.log("transport","heartbeat timeout. Attempting to re-establish connection"),this.triggerChanError(),this.closeWasClean=!1,this.teardown(()=>this.reconnectTimer.scheduleTimeout(),O,"heartbeat timeout"))}resetHeartbeat(){this.conn&&this.conn.skipHeartbeat||(this.pendingHeartbeatRef=null,this.clearHeartbeats(),this.heartbeatTimer=setTimeout(()=>this.sendHeartbeat(),this.heartbeatIntervalMs))}teardown(e,t,i){if(!this.conn)return e&&e();this.waitForBufferDone(()=>{this.conn&&(t?this.conn.close(t,i||""):this.conn.close()),this.waitForSocketClosed(()=>{this.conn&&(this.conn.onopen=function(){},this.conn.onerror=function(){},this.conn.onmessage=function(){},this.conn.onclose=function(){},this.conn=null),e&&e()})})}waitForBufferDone(e,t=1){if(t===5||!this.conn||!this.conn.bufferedAmount){e();return}setTimeout(()=>{this.waitForBufferDone(e,t+1)},150*t)}waitForSocketClosed(e,t=1){if(t===5||!this.conn||this.conn.readyState===d.closed){e();return}setTimeout(()=>{this.waitForSocketClosed(e,t+1)},150*t)}onConnClose(e){let t=e&&e.code;this.hasLogger()&&this.log("transport","close",e),this.triggerChanError(),this.clearHeartbeats(),!this.closeWasClean&&t!==1e3&&this.reconnectTimer.scheduleTimeout(),this.stateChangeCallbacks.close.forEach(([,i])=>i(e))}onConnError(e){this.hasLogger()&&this.log("transport",e);let t=this.transport,i=this.establishedConnections;this.stateChangeCallbacks.error.forEach(([,s])=>{s(e,t,i)}),(t===this.transport||i>0)&&this.triggerChanError()}triggerChanError(){this.channels.forEach(e=>{e.isErrored()||e.isLeaving()||e.isClosed()||e.trigger(p.error)})}connectionState(){switch(this.conn&&this.conn.readyState){case d.connecting:return"connecting";case d.open:return"open";case d.closing:return"closing";default:return"closed"}}isConnected(){return this.connectionState()==="open"}remove(e){this.off(e.stateChangeRefs),this.channels=this.channels.filter(t=>t!==e)}off(e){for(let t in this.stateChangeCallbacks)this.stateChangeCallbacks[t]=this.stateChangeCallbacks[t].filter(([i])=>e.indexOf(i)===-1)}channel(e,t={}){let i=new y(e,t,this);return this.channels.push(i),i}push(e){if(this.hasLogger()){let{topic:t,event:i,payload:s,ref:o,join_ref:r}=e;this.log("push",`${t} ${i} (${r}, ${o})`,s)}this.isConnected()?this.encode(e,t=>this.conn.send(t)):this.sendBuffer.push(()=>this.encode(e,t=>this.conn.send(t)))}makeRef(){let e=this.ref+1;return e===this.ref?this.ref=0:this.ref=e,this.ref.toString()}sendHeartbeat(){this.pendingHeartbeatRef&&!this.isConnected()||(this.pendingHeartbeatRef=this.makeRef(),this.push({topic:"phoenix",event:"heartbeat",payload:{},ref:this.pendingHeartbeatRef}),this.heartbeatTimeoutTimer=setTimeout(()=>this.heartbeatTimeout(),this.heartbeatIntervalMs))}flushSendBuffer(){this.isConnected()&&this.sendBuffer.length>0&&(this.sendBuffer.forEach(e=>e()),this.sendBuffer=[])}onConnMessage(e){this.decode(e.data,t=>{let{topic:i,event:s,payload:o,ref:r,join_ref:n}=t;r&&r===this.pendingHeartbeatRef&&(this.clearHeartbeats(),this.pendingHeartbeatRef=null,this.heartbeatTimer=setTimeout(()=>this.sendHeartbeat(),this.heartbeatIntervalMs)),this.hasLogger()&&this.log("receive",`${o.status||""} ${i} ${s} ${r&&"("+r+")"||""}`,o);for(let h=0;h<this.channels.length;h++){let l=this.channels[h];l.isMember(i,s,o,n)&&l.trigger(s,o,r,n)}for(let h=0;h<this.stateChangeCallbacks.message.length;h++){let[,l]=this.stateChangeCallbacks.message[h];l(t)}})}leaveOpenTopic(e){let t=this.channels.find(i=>i.topic===e&&(i.isJoined()||i.isJoining()));t&&(this.hasLogger()&&this.log("transport",`leaving duplicate topic "${e}"`),t.leave())}};return J(F);})();
+var Phoenix=(()=>{var x=Object.defineProperty;var $=Object.getOwnPropertyDescriptor;var M=Object.getOwnPropertyNames;var P=Object.prototype.hasOwnProperty;var D=(a,e)=>{for(var t in e)x(a,t,{get:e[t],enumerable:!0})},U=(a,e,t,i)=>{if(e&&typeof e=="object"||typeof e=="function")for(let s of M(e))!P.call(a,s)&&s!==t&&x(a,s,{get:()=>e[s],enumerable:!(i=$(e,s))||i.enumerable});return a};var J=a=>U(x({},"__esModule",{value:!0}),a);var F={};D(F,{Channel:()=>y,LongPoll:()=>m,Presence:()=>g,Serializer:()=>j,Socket:()=>w});var v=a=>typeof a=="function"?a:function(){return a};var z=typeof self!="undefined"?self:null,k=typeof window!="undefined"?window:null,T=z||k||T,H="2.0.0",d={connecting:0,open:1,closing:2,closed:3},N=1e4,O=1e3,u={closed:"closed",errored:"errored",joined:"joined",joining:"joining",leaving:"leaving"},p={close:"phx_close",error:"phx_error",join:"phx_join",reply:"phx_reply",leave:"phx_leave"},A={longpoll:"longpoll",websocket:"websocket"},B={complete:4};var b=class{constructor(e,t,i,s){this.channel=e,this.event=t,this.payload=i||function(){return{}},this.receivedResp=null,this.timeout=s,this.timeoutTimer=null,this.recHooks=[],this.sent=!1}resend(e){this.timeout=e,this.reset(),this.send()}send(){this.hasReceived("timeout")||(this.startTimeout(),this.sent=!0,this.channel.socket.push({topic:this.channel.topic,event:this.event,payload:this.payload(),ref:this.ref,join_ref:this.channel.joinRef()}))}receive(e,t){return this.hasReceived(e)&&t(this.receivedResp.response),this.recHooks.push({status:e,callback:t}),this}reset(){this.cancelRefEvent(),this.ref=null,this.refEvent=null,this.receivedResp=null,this.sent=!1}matchReceive({status:e,response:t,_ref:i}){this.recHooks.filter(s=>s.status===e).forEach(s=>s.callback(t))}cancelRefEvent(){this.refEvent&&this.channel.off(this.refEvent)}cancelTimeout(){clearTimeout(this.timeoutTimer),this.timeoutTimer=null}startTimeout(){this.timeoutTimer&&this.cancelTimeout(),this.ref=this.channel.socket.makeRef(),this.refEvent=this.channel.replyEventName(this.ref),this.channel.on(this.refEvent,e=>{this.cancelRefEvent(),this.cancelTimeout(),this.receivedResp=e,this.matchReceive(e)}),this.timeoutTimer=setTimeout(()=>{this.trigger("timeout",{})},this.timeout)}hasReceived(e){return this.receivedResp&&this.receivedResp.status===e}trigger(e,t){this.channel.trigger(this.refEvent,{status:e,response:t})}};var R=class{constructor(e,t){this.callback=e,this.timerCalc=t,this.timer=null,this.tries=0}reset(){this.tries=0,clearTimeout(this.timer)}scheduleTimeout(){clearTimeout(this.timer),this.timer=setTimeout(()=>{this.tries=this.tries+1,this.callback()},this.timerCalc(this.tries+1))}};var y=class{constructor(e,t,i){this.state=u.closed,this.topic=e,this.params=v(t||{}),this.socket=i,this.bindings=[],this.bindingRef=0,this.timeout=this.socket.timeout,this.joinedOnce=!1,this.joinPush=new b(this,p.join,this.params,this.timeout),this.pushBuffer=[],this.stateChangeRefs=[],this.rejoinTimer=new R(()=>{this.socket.isConnected()&&this.rejoin()},this.socket.rejoinAfterMs),this.stateChangeRefs.push(this.socket.onError(()=>this.rejoinTimer.reset())),this.stateChangeRefs.push(this.socket.onOpen(()=>{this.rejoinTimer.reset(),this.isErrored()&&this.rejoin()})),this.joinPush.receive("ok",()=>{this.state=u.joined,this.rejoinTimer.reset(),this.pushBuffer.forEach(s=>s.send()),this.pushBuffer=[]}),this.joinPush.receive("error",()=>{this.state=u.errored,this.socket.isConnected()&&this.rejoinTimer.scheduleTimeout()}),this.onClose(()=>{this.rejoinTimer.reset(),this.socket.hasLogger()&&this.socket.log("channel",`close ${this.topic} ${this.joinRef()}`),this.state=u.closed,this.socket.remove(this)}),this.onError(s=>{this.socket.hasLogger()&&this.socket.log("channel",`error ${this.topic}`,s),this.isJoining()&&this.joinPush.reset(),this.state=u.errored,this.socket.isConnected()&&this.rejoinTimer.scheduleTimeout()}),this.joinPush.receive("timeout",()=>{this.socket.hasLogger()&&this.socket.log("channel",`timeout ${this.topic} (${this.joinRef()})`,this.joinPush.timeout),new b(this,p.leave,v({}),this.timeout).send(),this.state=u.errored,this.joinPush.reset(),this.socket.isConnected()&&this.rejoinTimer.scheduleTimeout()}),this.on(p.reply,(s,o)=>{this.trigger(this.replyEventName(o),s)})}join(e=this.timeout){if(this.joinedOnce)throw new Error("tried to join multiple times. 'join' can only be called a single time per channel instance");return this.timeout=e,this.joinedOnce=!0,this.rejoin(),this.joinPush}onClose(e){this.on(p.close,e)}onError(e){return this.on(p.error,t=>e(t))}on(e,t){let i=this.bindingRef++;return this.bindings.push({event:e,ref:i,callback:t}),i}off(e,t){this.bindings=this.bindings.filter(i=>!(i.event===e&&(typeof t=="undefined"||t===i.ref)))}canPush(){return this.socket.isConnected()&&this.isJoined()}push(e,t,i=this.timeout){if(t=t||{},!this.joinedOnce)throw new Error(`tried to push '${e}' to '${this.topic}' before joining. Use channel.join() before pushing events`);let s=new b(this,e,function(){return t},i);return this.canPush()?s.send():(s.startTimeout(),this.pushBuffer.push(s)),s}leave(e=this.timeout){this.rejoinTimer.reset(),this.joinPush.cancelTimeout(),this.state=u.leaving;let t=()=>{this.socket.hasLogger()&&this.socket.log("channel",`leave ${this.topic}`),this.trigger(p.close,"leave")},i=new b(this,p.leave,v({}),e);return i.receive("ok",()=>t()).receive("timeout",()=>t()),i.send(),this.canPush()||i.trigger("ok",{}),i}onMessage(e,t,i){return t}isMember(e,t,i,s){return this.topic!==e?!1:s&&s!==this.joinRef()?(this.socket.hasLogger()&&this.socket.log("channel","dropping outdated message",{topic:e,event:t,payload:i,joinRef:s}),!1):!0}joinRef(){return this.joinPush.ref}rejoin(e=this.timeout){this.isLeaving()||(this.socket.leaveOpenTopic(this.topic),this.state=u.joining,this.joinPush.resend(e))}trigger(e,t,i,s){let o=this.onMessage(e,t,i,s);if(t&&!o)throw new Error("channel onMessage callbacks must return the payload, modified or unmodified");let r=this.bindings.filter(n=>n.event===e);for(let n=0;n<r.length;n++)r[n].callback(o,i,s||this.joinRef())}replyEventName(e){return`chan_reply_${e}`}isClosed(){return this.state===u.closed}isErrored(){return this.state===u.errored}isJoined(){return this.state===u.joined}isJoining(){return this.state===u.joining}isLeaving(){return this.state===u.leaving}};var C=class{static request(e,t,i,s,o,r,n){if(T.XDomainRequest){let h=new T.XDomainRequest;return this.xdomainRequest(h,e,t,s,o,r,n)}else{let h=new T.XMLHttpRequest;return this.xhrRequest(h,e,t,i,s,o,r,n)}}static xdomainRequest(e,t,i,s,o,r,n){return e.timeout=o,e.open(t,i),e.onload=()=>{let h=this.parseJSON(e.responseText);n&&n(h)},r&&(e.ontimeout=r),e.onprogress=()=>{},e.send(s),e}static xhrRequest(e,t,i,s,o,r,n,h){return e.open(t,i,!0),e.timeout=r,e.setRequestHeader("Content-Type",s),e.onerror=()=>h&&h(null),e.onreadystatechange=()=>{if(e.readyState===B.complete&&h){let l=this.parseJSON(e.responseText);h(l)}},n&&(e.ontimeout=n),e.send(o),e}static parseJSON(e){if(!e||e==="")return null;try{return JSON.parse(e)}catch(t){return console&&console.log("failed to parse JSON response",e),null}}static serialize(e,t){let i=[];for(var s in e){if(!Object.prototype.hasOwnProperty.call(e,s))continue;let o=t?`${t}[${s}]`:s,r=e[s];typeof r=="object"?i.push(this.serialize(r,o)):i.push(encodeURIComponent(o)+"="+encodeURIComponent(r))}return i.join("&")}static appendParams(e,t){if(Object.keys(t).length===0)return e;let i=e.match(/\?/)?"&":"?";return`${e}${i}${this.serialize(t)}`}};var I=a=>{let e="",t=new Uint8Array(a),i=t.byteLength;for(let s=0;s<i;s++)e+=String.fromCharCode(t[s]);return btoa(e)},m=class{constructor(e){this.endPoint=null,this.token=null,this.skipHeartbeat=!0,this.reqs=new Set,this.awaitingBatchAck=!1,this.currentBatch=null,this.currentBatchTimer=null,this.batchBuffer=[],this.onopen=function(){},this.onerror=function(){},this.onmessage=function(){},this.onclose=function(){},this.pollEndpoint=this.normalizeEndpoint(e),this.readyState=d.connecting,setTimeout(()=>this.poll(),0)}normalizeEndpoint(e){return e.replace("ws://","http://").replace("wss://","https://").replace(new RegExp("(.*)/"+A.websocket),"$1/"+A.longpoll)}endpointURL(){return C.appendParams(this.pollEndpoint,{token:this.token})}closeAndRetry(e,t,i){this.close(e,t,i),this.readyState=d.connecting}ontimeout(){this.onerror("timeout"),this.closeAndRetry(1005,"timeout",!1)}isActive(){return this.readyState===d.open||this.readyState===d.connecting}poll(){this.ajax("GET","application/json",null,()=>this.ontimeout(),e=>{if(e){var{status:t,token:i,messages:s}=e;this.token=i}else t=0;switch(t){case 200:s.forEach(o=>{setTimeout(()=>this.onmessage({data:o}),0)}),this.poll();break;case 204:this.poll();break;case 410:this.readyState=d.open,this.onopen({}),this.poll();break;case 403:this.onerror(403),this.close(1008,"forbidden",!1);break;case 0:case 500:this.onerror(500),this.closeAndRetry(1011,"internal server error",500);break;default:throw new Error(`unhandled poll status ${t}`)}})}send(e){typeof e!="string"&&(e=I(e)),this.currentBatch?this.currentBatch.push(e):this.awaitingBatchAck?this.batchBuffer.push(e):(this.currentBatch=[e],this.currentBatchTimer=setTimeout(()=>{this.batchSend(this.currentBatch),this.currentBatch=null},0))}batchSend(e){this.awaitingBatchAck=!0,this.ajax("POST","application/x-ndjson",e.join(`
+`),()=>this.onerror("timeout"),t=>{this.awaitingBatchAck=!1,!t||t.status!==200?(this.onerror(t&&t.status),this.closeAndRetry(1011,"internal server error",!1)):this.batchBuffer.length>0&&(this.batchSend(this.batchBuffer),this.batchBuffer=[])})}close(e,t,i){for(let o of this.reqs)o.abort();this.readyState=d.closed;let s=Object.assign({code:1e3,reason:void 0,wasClean:!0},{code:e,reason:t,wasClean:i});this.batchBuffer=[],clearTimeout(this.currentBatchTimer),this.currentBatchTimer=null,typeof CloseEvent!="undefined"?this.onclose(new CloseEvent("close",s)):this.onclose(s)}ajax(e,t,i,s,o){let r,n=()=>{this.reqs.delete(r),s()};r=C.request(e,this.endpointURL(),t,i,this.timeout,n,h=>{this.reqs.delete(r),this.isActive()&&o(h)}),this.reqs.add(r)}};var g=class{constructor(e,t={}){let i=t.events||{state:"presence_state",diff:"presence_diff"};this.state={},this.pendingDiffs=[],this.channel=e,this.joinRef=null,this.caller={onJoin:function(){},onLeave:function(){},onSync:function(){}},this.channel.on(i.state,s=>{let{onJoin:o,onLeave:r,onSync:n}=this.caller;this.joinRef=this.channel.joinRef(),this.state=g.syncState(this.state,s,o,r),this.pendingDiffs.forEach(h=>{this.state=g.syncDiff(this.state,h,o,r)}),this.pendingDiffs=[],n()}),this.channel.on(i.diff,s=>{let{onJoin:o,onLeave:r,onSync:n}=this.caller;this.inPendingSyncState()?this.pendingDiffs.push(s):(this.state=g.syncDiff(this.state,s,o,r),n())})}onJoin(e){this.caller.onJoin=e}onLeave(e){this.caller.onLeave=e}onSync(e){this.caller.onSync=e}list(e){return g.list(this.state,e)}inPendingSyncState(){return!this.joinRef||this.joinRef!==this.channel.joinRef()}static syncState(e,t,i,s){let o=this.clone(e),r={},n={};return this.map(o,(h,l)=>{t[h]||(n[h]=l)}),this.map(t,(h,l)=>{let f=o[h];if(f){let c=l.metas.map(S=>S.phx_ref),E=f.metas.map(S=>S.phx_ref),L=l.metas.filter(S=>E.indexOf(S.phx_ref)<0),_=f.metas.filter(S=>c.indexOf(S.phx_ref)<0);L.length>0&&(r[h]=l,r[h].metas=L),_.length>0&&(n[h]=this.clone(f),n[h].metas=_)}else r[h]=l}),this.syncDiff(o,{joins:r,leaves:n},i,s)}static syncDiff(e,t,i,s){let{joins:o,leaves:r}=this.clone(t);return i||(i=function(){}),s||(s=function(){}),this.map(o,(n,h)=>{let l=e[n];if(e[n]=this.clone(h),l){let f=e[n].metas.map(E=>E.phx_ref),c=l.metas.filter(E=>f.indexOf(E.phx_ref)<0);e[n].metas.unshift(...c)}i(n,l,h)}),this.map(r,(n,h)=>{let l=e[n];if(!l)return;let f=h.metas.map(c=>c.phx_ref);l.metas=l.metas.filter(c=>f.indexOf(c.phx_ref)<0),s(n,l,h),l.metas.length===0&&delete e[n]}),e}static list(e,t){return t||(t=function(i,s){return s}),this.map(e,(i,s)=>t(i,s))}static map(e,t){return Object.getOwnPropertyNames(e).map(i=>t(i,e[i]))}static clone(e){return JSON.parse(JSON.stringify(e))}};var j={HEADER_LENGTH:1,META_LENGTH:4,KINDS:{push:0,reply:1,broadcast:2},encode(a,e){if(a.payload.constructor===ArrayBuffer)return e(this.binaryEncode(a));{let t=[a.join_ref,a.ref,a.topic,a.event,a.payload];return e(JSON.stringify(t))}},decode(a,e){if(a.constructor===ArrayBuffer)return e(this.binaryDecode(a));{let[t,i,s,o,r]=JSON.parse(a);return e({join_ref:t,ref:i,topic:s,event:o,payload:r})}},binaryEncode(a){let{join_ref:e,ref:t,event:i,topic:s,payload:o}=a,r=this.META_LENGTH+e.length+t.length+s.length+i.length,n=new ArrayBuffer(this.HEADER_LENGTH+r),h=new DataView(n),l=0;h.setUint8(l++,this.KINDS.push),h.setUint8(l++,e.length),h.setUint8(l++,t.length),h.setUint8(l++,s.length),h.setUint8(l++,i.length),Array.from(e,c=>h.setUint8(l++,c.charCodeAt(0))),Array.from(t,c=>h.setUint8(l++,c.charCodeAt(0))),Array.from(s,c=>h.setUint8(l++,c.charCodeAt(0))),Array.from(i,c=>h.setUint8(l++,c.charCodeAt(0)));var f=new Uint8Array(n.byteLength+o.byteLength);return f.set(new Uint8Array(n),0),f.set(new Uint8Array(o),n.byteLength),f.buffer},binaryDecode(a){let e=new DataView(a),t=e.getUint8(0),i=new TextDecoder;switch(t){case this.KINDS.push:return this.decodePush(a,e,i);case this.KINDS.reply:return this.decodeReply(a,e,i);case this.KINDS.broadcast:return this.decodeBroadcast(a,e,i)}},decodePush(a,e,t){let i=e.getUint8(1),s=e.getUint8(2),o=e.getUint8(3),r=this.HEADER_LENGTH+this.META_LENGTH-1,n=t.decode(a.slice(r,r+i));r=r+i;let h=t.decode(a.slice(r,r+s));r=r+s;let l=t.decode(a.slice(r,r+o));r=r+o;let f=a.slice(r,a.byteLength);return{join_ref:n,ref:null,topic:h,event:l,payload:f}},decodeReply(a,e,t){let i=e.getUint8(1),s=e.getUint8(2),o=e.getUint8(3),r=e.getUint8(4),n=this.HEADER_LENGTH+this.META_LENGTH,h=t.decode(a.slice(n,n+i));n=n+i;let l=t.decode(a.slice(n,n+s));n=n+s;let f=t.decode(a.slice(n,n+o));n=n+o;let c=t.decode(a.slice(n,n+r));n=n+r;let E=a.slice(n,a.byteLength),L={status:c,response:E};return{join_ref:h,ref:l,topic:f,event:p.reply,payload:L}},decodeBroadcast(a,e,t){let i=e.getUint8(1),s=e.getUint8(2),o=this.HEADER_LENGTH+2,r=t.decode(a.slice(o,o+i));o=o+i;let n=t.decode(a.slice(o,o+s));o=o+s;let h=a.slice(o,a.byteLength);return{join_ref:null,ref:null,topic:r,event:n,payload:h}}};var w=class{constructor(e,t={}){this.stateChangeCallbacks={open:[],close:[],error:[],message:[]},this.channels=[],this.sendBuffer=[],this.ref=0,this.timeout=t.timeout||N,this.transport=t.transport||T.WebSocket||m,this.primaryPassedHealthCheck=!1,this.longPollFallbackMs=t.longPollFallbackMs,this.fallbackTimer=null,this.sessionStore=t.sessionStorage||T&&T.sessionStorage,this.establishedConnections=0,this.defaultEncoder=j.encode.bind(j),this.defaultDecoder=j.decode.bind(j),this.closeWasClean=!1,this.binaryType=t.binaryType||"arraybuffer",this.connectClock=1,this.transport!==m?(this.encode=t.encode||this.defaultEncoder,this.decode=t.decode||this.defaultDecoder):(this.encode=this.defaultEncoder,this.decode=this.defaultDecoder);let i=null;k&&k.addEventListener&&(k.addEventListener("pagehide",s=>{this.conn&&(this.disconnect(),i=this.connectClock)}),k.addEventListener("pageshow",s=>{i===this.connectClock&&(i=null,this.connect())})),this.heartbeatIntervalMs=t.heartbeatIntervalMs||3e4,this.rejoinAfterMs=s=>t.rejoinAfterMs?t.rejoinAfterMs(s):[1e3,2e3,5e3][s-1]||1e4,this.reconnectAfterMs=s=>t.reconnectAfterMs?t.reconnectAfterMs(s):[10,50,100,150,200,250,500,1e3,2e3][s-1]||5e3,this.logger=t.logger||null,!this.logger&&t.debug&&(this.logger=(s,o,r)=>{console.log(`${s}: ${o}`,r)}),this.longpollerTimeout=t.longpollerTimeout||2e4,this.params=v(t.params||{}),this.endPoint=`${e}/${A.websocket}`,this.vsn=t.vsn||H,this.heartbeatTimeoutTimer=null,this.heartbeatTimer=null,this.pendingHeartbeatRef=null,this.reconnectTimer=new R(()=>{this.teardown(()=>this.connect())},this.reconnectAfterMs)}getLongPollTransport(){return m}replaceTransport(e){this.connectClock++,this.closeWasClean=!0,clearTimeout(this.fallbackTimer),this.reconnectTimer.reset(),this.conn&&(this.conn.close(),this.conn=null),this.transport=e}protocol(){return location.protocol.match(/^https/)?"wss":"ws"}endPointURL(){let e=C.appendParams(C.appendParams(this.endPoint,this.params()),{vsn:this.vsn});return e.charAt(0)!=="/"?e:e.charAt(1)==="/"?`${this.protocol()}:${e}`:`${this.protocol()}://${location.host}${e}`}disconnect(e,t,i){this.connectClock++,this.closeWasClean=!0,clearTimeout(this.fallbackTimer),this.reconnectTimer.reset(),this.teardown(e,t,i)}connect(e){e&&(console&&console.log("passing params to connect is deprecated. Instead pass :params to the Socket constructor"),this.params=v(e)),!this.conn&&(this.longPollFallbackMs&&this.transport!==m?this.connectWithFallback(m,this.longPollFallbackMs):this.transportConnect())}log(e,t,i){this.logger&&this.logger(e,t,i)}hasLogger(){return this.logger!==null}onOpen(e){let t=this.makeRef();return this.stateChangeCallbacks.open.push([t,e]),t}onClose(e){let t=this.makeRef();return this.stateChangeCallbacks.close.push([t,e]),t}onError(e){let t=this.makeRef();return this.stateChangeCallbacks.error.push([t,e]),t}onMessage(e){let t=this.makeRef();return this.stateChangeCallbacks.message.push([t,e]),t}ping(e){if(!this.isConnected())return!1;let t=this.makeRef(),i=Date.now();this.push({topic:"phoenix",event:"heartbeat",payload:{},ref:t});let s=this.onMessage(o=>{o.ref===t&&(this.off([s]),e(Date.now()-i))});return!0}transportConnect(){this.connectClock++,this.closeWasClean=!1,this.conn=new this.transport(this.endPointURL()),this.conn.binaryType=this.binaryType,this.conn.timeout=this.longpollerTimeout,this.conn.onopen=()=>this.onConnOpen(),this.conn.onerror=e=>this.onConnError(e),this.conn.onmessage=e=>this.onConnMessage(e),this.conn.onclose=e=>this.onConnClose(e)}getSession(e){return this.sessionStore&&this.sessionStore.getItem(e)}storeSession(e,t){this.sessionStore&&this.sessionStore.setItem(e,t)}connectWithFallback(e,t=2500){clearTimeout(this.fallbackTimer);let i=!1,s=!0,o,r,n=h=>{this.log("transport",`falling back to ${e.name}...`,h),this.off([o,r]),s=!1,this.replaceTransport(e),this.transportConnect()};if(this.getSession(`phx:fallback:${e.name}`))return n("memorized");this.fallbackTimer=setTimeout(n,t),r=this.onError(h=>{this.log("transport","error",h),s&&!i&&(clearTimeout(this.fallbackTimer),n(h))}),this.onOpen(()=>{if(i=!0,!s)return this.primaryPassedHealthCheck||this.storeSession(`phx:fallback:${e.name}`,"true"),this.log("transport",`established ${e.name} fallback`);clearTimeout(this.fallbackTimer),this.fallbackTimer=setTimeout(n,t),this.ping(h=>{this.log("transport","connected to primary after",h),this.primaryPassedHealthCheck=!0,clearTimeout(this.fallbackTimer)})}),this.transportConnect()}clearHeartbeats(){clearTimeout(this.heartbeatTimer),clearTimeout(this.heartbeatTimeoutTimer)}onConnOpen(){this.hasLogger()&&this.log("transport",`${this.transport.name} connected to ${this.endPointURL()}`),this.closeWasClean=!1,this.establishedConnections++,this.flushSendBuffer(),this.reconnectTimer.reset(),this.resetHeartbeat(),this.stateChangeCallbacks.open.forEach(([,e])=>e())}heartbeatTimeout(){this.pendingHeartbeatRef&&(this.pendingHeartbeatRef=null,this.hasLogger()&&this.log("transport","heartbeat timeout. Attempting to re-establish connection"),this.triggerChanError(),this.closeWasClean=!1,this.teardown(()=>this.reconnectTimer.scheduleTimeout(),O,"heartbeat timeout"))}resetHeartbeat(){this.conn&&this.conn.skipHeartbeat||(this.pendingHeartbeatRef=null,this.clearHeartbeats(),this.heartbeatTimer=setTimeout(()=>this.sendHeartbeat(),this.heartbeatIntervalMs))}teardown(e,t,i){if(!this.conn)return e&&e();this.waitForBufferDone(()=>{this.conn&&(t?this.conn.close(t,i||""):this.conn.close()),this.waitForSocketClosed(()=>{this.conn&&(this.conn.onopen=function(){},this.conn.onerror=function(){},this.conn.onmessage=function(){},this.conn.onclose=function(){},this.conn=null),e&&e()})})}waitForBufferDone(e,t=1){if(t===5||!this.conn||!this.conn.bufferedAmount){e();return}setTimeout(()=>{this.waitForBufferDone(e,t+1)},150*t)}waitForSocketClosed(e,t=1){if(t===5||!this.conn||this.conn.readyState===d.closed){e();return}setTimeout(()=>{this.waitForSocketClosed(e,t+1)},150*t)}onConnClose(e){let t=e&&e.code;this.hasLogger()&&this.log("transport","close",e),this.triggerChanError(),this.clearHeartbeats(),!this.closeWasClean&&t!==1e3&&this.reconnectTimer.scheduleTimeout(),this.stateChangeCallbacks.close.forEach(([,i])=>i(e))}onConnError(e){this.hasLogger()&&this.log("transport",e);let t=this.transport,i=this.establishedConnections;this.stateChangeCallbacks.error.forEach(([,s])=>{s(e,t,i)}),(t===this.transport||i>0)&&this.triggerChanError()}triggerChanError(){this.channels.forEach(e=>{e.isErrored()||e.isLeaving()||e.isClosed()||e.trigger(p.error)})}connectionState(){switch(this.conn&&this.conn.readyState){case d.connecting:return"connecting";case d.open:return"open";case d.closing:return"closing";default:return"closed"}}isConnected(){return this.connectionState()==="open"}remove(e){this.off(e.stateChangeRefs),this.channels=this.channels.filter(t=>t!==e)}off(e){for(let t in this.stateChangeCallbacks)this.stateChangeCallbacks[t]=this.stateChangeCallbacks[t].filter(([i])=>e.indexOf(i)===-1)}channel(e,t={}){let i=new y(e,t,this);return this.channels.push(i),i}push(e){if(this.hasLogger()){let{topic:t,event:i,payload:s,ref:o,join_ref:r}=e;this.log("push",`${t} ${i} (${r}, ${o})`,s)}this.isConnected()?this.encode(e,t=>this.conn.send(t)):this.sendBuffer.push(()=>this.encode(e,t=>this.conn.send(t)))}makeRef(){let e=this.ref+1;return e===this.ref?this.ref=0:this.ref=e,this.ref.toString()}sendHeartbeat(){this.pendingHeartbeatRef&&!this.isConnected()||(this.pendingHeartbeatRef=this.makeRef(),this.push({topic:"phoenix",event:"heartbeat",payload:{},ref:this.pendingHeartbeatRef}),this.heartbeatTimeoutTimer=setTimeout(()=>this.heartbeatTimeout(),this.heartbeatIntervalMs))}flushSendBuffer(){this.isConnected()&&this.sendBuffer.length>0&&(this.sendBuffer.forEach(e=>e()),this.sendBuffer=[])}onConnMessage(e){this.decode(e.data,t=>{let{topic:i,event:s,payload:o,ref:r,join_ref:n}=t;r&&r===this.pendingHeartbeatRef&&(this.clearHeartbeats(),this.pendingHeartbeatRef=null,this.heartbeatTimer=setTimeout(()=>this.sendHeartbeat(),this.heartbeatIntervalMs)),this.hasLogger()&&this.log("receive",`${o.status||""} ${i} ${s} ${r&&"("+r+")"||""}`,o);for(let h=0;h<this.channels.length;h++){let l=this.channels[h];l.isMember(i,s,o,n)&&l.trigger(s,o,r,n)}for(let h=0;h<this.stateChangeCallbacks.message.length;h++){let[,l]=this.stateChangeCallbacks.message[h];l(t)}})}leaveOpenTopic(e){let t=this.channels.find(i=>i.topic===e&&(i.isJoined()||i.isJoining()));t&&(this.hasLogger()&&this.log("transport",`leaving duplicate topic "${e}"`),t.leave())}};return J(F);})();
diff --git a/priv/static/phoenix.mjs b/priv/static/phoenix.mjs
index 67e605dd5e..ca9ca08f68 100644
--- a/priv/static/phoenix.mjs
+++ b/priv/static/phoenix.mjs
@@ -1000,7 +1000,7 @@ var Socket = class {
     this.primaryPassedHealthCheck = false;
     this.longPollFallbackMs = opts.longPollFallbackMs;
     this.fallbackTimer = null;
-    this.sessionStore = opts.sessionStorage || global.sessionStorage;
+    this.sessionStore = opts.sessionStorage || global && global.sessionStorage;
     this.establishedConnections = 0;
     this.defaultEncoder = serializer_default.encode.bind(serializer_default);
     this.defaultDecoder = serializer_default.decode.bind(serializer_default);
diff --git a/priv/static/phoenix.mjs.map b/priv/static/phoenix.mjs.map
index 3c0f0580a8..04797b1753 100644
--- a/priv/static/phoenix.mjs.map
+++ b/priv/static/phoenix.mjs.map
@@ -1,7 +1,7 @@
 {
   "version": 3,
   "sources": ["../../assets/js/phoenix/utils.js", "../../assets/js/phoenix/constants.js", "../../assets/js/phoenix/push.js", "../../assets/js/phoenix/timer.js", "../../assets/js/phoenix/channel.js", "../../assets/js/phoenix/ajax.js", "../../assets/js/phoenix/longpoll.js", "../../assets/js/phoenix/presence.js", "../../assets/js/phoenix/serializer.js", "../../assets/js/phoenix/socket.js"],
-  "sourcesContent": ["// wraps value in closure or returns closure\nexport let closure = (value) => {\n  if(typeof value === \"function\"){\n    return value\n  } else {\n    let closure = function (){ return value }\n    return closure\n  }\n}\n", "export const globalSelf = typeof self !== \"undefined\" ? self : null\nexport const phxWindow = typeof window !== \"undefined\" ? window : null\nexport const global = globalSelf || phxWindow || global\nexport const DEFAULT_VSN = \"2.0.0\"\nexport const SOCKET_STATES = {connecting: 0, open: 1, closing: 2, closed: 3}\nexport const DEFAULT_TIMEOUT = 10000\nexport const WS_CLOSE_NORMAL = 1000\nexport const CHANNEL_STATES = {\n  closed: \"closed\",\n  errored: \"errored\",\n  joined: \"joined\",\n  joining: \"joining\",\n  leaving: \"leaving\",\n}\nexport const CHANNEL_EVENTS = {\n  close: \"phx_close\",\n  error: \"phx_error\",\n  join: \"phx_join\",\n  reply: \"phx_reply\",\n  leave: \"phx_leave\"\n}\n\nexport const TRANSPORTS = {\n  longpoll: \"longpoll\",\n  websocket: \"websocket\"\n}\nexport const XHR_STATES = {\n  complete: 4\n}\n", "/**\n * Initializes the Push\n * @param {Channel} channel - The Channel\n * @param {string} event - The event, for example `\"phx_join\"`\n * @param {Object} payload - The payload, for example `{user_id: 123}`\n * @param {number} timeout - The push timeout in milliseconds\n */\nexport default class Push {\n  constructor(channel, event, payload, timeout){\n    this.channel = channel\n    this.event = event\n    this.payload = payload || function (){ return {} }\n    this.receivedResp = null\n    this.timeout = timeout\n    this.timeoutTimer = null\n    this.recHooks = []\n    this.sent = false\n  }\n\n  /**\n   *\n   * @param {number} timeout\n   */\n  resend(timeout){\n    this.timeout = timeout\n    this.reset()\n    this.send()\n  }\n\n  /**\n   *\n   */\n  send(){\n    if(this.hasReceived(\"timeout\")){ return }\n    this.startTimeout()\n    this.sent = true\n    this.channel.socket.push({\n      topic: this.channel.topic,\n      event: this.event,\n      payload: this.payload(),\n      ref: this.ref,\n      join_ref: this.channel.joinRef()\n    })\n  }\n\n  /**\n   *\n   * @param {*} status\n   * @param {*} callback\n   */\n  receive(status, callback){\n    if(this.hasReceived(status)){\n      callback(this.receivedResp.response)\n    }\n\n    this.recHooks.push({status, callback})\n    return this\n  }\n\n  /**\n   * @private\n   */\n  reset(){\n    this.cancelRefEvent()\n    this.ref = null\n    this.refEvent = null\n    this.receivedResp = null\n    this.sent = false\n  }\n\n  /**\n   * @private\n   */\n  matchReceive({status, response, _ref}){\n    this.recHooks.filter(h => h.status === status)\n      .forEach(h => h.callback(response))\n  }\n\n  /**\n   * @private\n   */\n  cancelRefEvent(){\n    if(!this.refEvent){ return }\n    this.channel.off(this.refEvent)\n  }\n\n  /**\n   * @private\n   */\n  cancelTimeout(){\n    clearTimeout(this.timeoutTimer)\n    this.timeoutTimer = null\n  }\n\n  /**\n   * @private\n   */\n  startTimeout(){\n    if(this.timeoutTimer){ this.cancelTimeout() }\n    this.ref = this.channel.socket.makeRef()\n    this.refEvent = this.channel.replyEventName(this.ref)\n\n    this.channel.on(this.refEvent, payload => {\n      this.cancelRefEvent()\n      this.cancelTimeout()\n      this.receivedResp = payload\n      this.matchReceive(payload)\n    })\n\n    this.timeoutTimer = setTimeout(() => {\n      this.trigger(\"timeout\", {})\n    }, this.timeout)\n  }\n\n  /**\n   * @private\n   */\n  hasReceived(status){\n    return this.receivedResp && this.receivedResp.status === status\n  }\n\n  /**\n   * @private\n   */\n  trigger(status, response){\n    this.channel.trigger(this.refEvent, {status, response})\n  }\n}\n", "/**\n *\n * Creates a timer that accepts a `timerCalc` function to perform\n * calculated timeout retries, such as exponential backoff.\n *\n * @example\n * let reconnectTimer = new Timer(() => this.connect(), function(tries){\n *   return [1000, 5000, 10000][tries - 1] || 10000\n * })\n * reconnectTimer.scheduleTimeout() // fires after 1000\n * reconnectTimer.scheduleTimeout() // fires after 5000\n * reconnectTimer.reset()\n * reconnectTimer.scheduleTimeout() // fires after 1000\n *\n * @param {Function} callback\n * @param {Function} timerCalc\n */\nexport default class Timer {\n  constructor(callback, timerCalc){\n    this.callback = callback\n    this.timerCalc = timerCalc\n    this.timer = null\n    this.tries = 0\n  }\n\n  reset(){\n    this.tries = 0\n    clearTimeout(this.timer)\n  }\n\n  /**\n   * Cancels any previous scheduleTimeout and schedules callback\n   */\n  scheduleTimeout(){\n    clearTimeout(this.timer)\n\n    this.timer = setTimeout(() => {\n      this.tries = this.tries + 1\n      this.callback()\n    }, this.timerCalc(this.tries + 1))\n  }\n}\n", "import {closure} from \"./utils\"\nimport {\n  CHANNEL_EVENTS,\n  CHANNEL_STATES,\n} from \"./constants\"\n\nimport Push from \"./push\"\nimport Timer from \"./timer\"\n\n/**\n *\n * @param {string} topic\n * @param {(Object|function)} params\n * @param {Socket} socket\n */\nexport default class Channel {\n  constructor(topic, params, socket){\n    this.state = CHANNEL_STATES.closed\n    this.topic = topic\n    this.params = closure(params || {})\n    this.socket = socket\n    this.bindings = []\n    this.bindingRef = 0\n    this.timeout = this.socket.timeout\n    this.joinedOnce = false\n    this.joinPush = new Push(this, CHANNEL_EVENTS.join, this.params, this.timeout)\n    this.pushBuffer = []\n    this.stateChangeRefs = []\n\n    this.rejoinTimer = new Timer(() => {\n      if(this.socket.isConnected()){ this.rejoin() }\n    }, this.socket.rejoinAfterMs)\n    this.stateChangeRefs.push(this.socket.onError(() => this.rejoinTimer.reset()))\n    this.stateChangeRefs.push(this.socket.onOpen(() => {\n      this.rejoinTimer.reset()\n      if(this.isErrored()){ this.rejoin() }\n    })\n    )\n    this.joinPush.receive(\"ok\", () => {\n      this.state = CHANNEL_STATES.joined\n      this.rejoinTimer.reset()\n      this.pushBuffer.forEach(pushEvent => pushEvent.send())\n      this.pushBuffer = []\n    })\n    this.joinPush.receive(\"error\", () => {\n      this.state = CHANNEL_STATES.errored\n      if(this.socket.isConnected()){ this.rejoinTimer.scheduleTimeout() }\n    })\n    this.onClose(() => {\n      this.rejoinTimer.reset()\n      if(this.socket.hasLogger()) this.socket.log(\"channel\", `close ${this.topic} ${this.joinRef()}`)\n      this.state = CHANNEL_STATES.closed\n      this.socket.remove(this)\n    })\n    this.onError(reason => {\n      if(this.socket.hasLogger()) this.socket.log(\"channel\", `error ${this.topic}`, reason)\n      if(this.isJoining()){ this.joinPush.reset() }\n      this.state = CHANNEL_STATES.errored\n      if(this.socket.isConnected()){ this.rejoinTimer.scheduleTimeout() }\n    })\n    this.joinPush.receive(\"timeout\", () => {\n      if(this.socket.hasLogger()) this.socket.log(\"channel\", `timeout ${this.topic} (${this.joinRef()})`, this.joinPush.timeout)\n      let leavePush = new Push(this, CHANNEL_EVENTS.leave, closure({}), this.timeout)\n      leavePush.send()\n      this.state = CHANNEL_STATES.errored\n      this.joinPush.reset()\n      if(this.socket.isConnected()){ this.rejoinTimer.scheduleTimeout() }\n    })\n    this.on(CHANNEL_EVENTS.reply, (payload, ref) => {\n      this.trigger(this.replyEventName(ref), payload)\n    })\n  }\n\n  /**\n   * Join the channel\n   * @param {integer} timeout\n   * @returns {Push}\n   */\n  join(timeout = this.timeout){\n    if(this.joinedOnce){\n      throw new Error(\"tried to join multiple times. 'join' can only be called a single time per channel instance\")\n    } else {\n      this.timeout = timeout\n      this.joinedOnce = true\n      this.rejoin()\n      return this.joinPush\n    }\n  }\n\n  /**\n   * Hook into channel close\n   * @param {Function} callback\n   */\n  onClose(callback){\n    this.on(CHANNEL_EVENTS.close, callback)\n  }\n\n  /**\n   * Hook into channel errors\n   * @param {Function} callback\n   */\n  onError(callback){\n    return this.on(CHANNEL_EVENTS.error, reason => callback(reason))\n  }\n\n  /**\n   * Subscribes on channel events\n   *\n   * Subscription returns a ref counter, which can be used later to\n   * unsubscribe the exact event listener\n   *\n   * @example\n   * const ref1 = channel.on(\"event\", do_stuff)\n   * const ref2 = channel.on(\"event\", do_other_stuff)\n   * channel.off(\"event\", ref1)\n   * // Since unsubscription, do_stuff won't fire,\n   * // while do_other_stuff will keep firing on the \"event\"\n   *\n   * @param {string} event\n   * @param {Function} callback\n   * @returns {integer} ref\n   */\n  on(event, callback){\n    let ref = this.bindingRef++\n    this.bindings.push({event, ref, callback})\n    return ref\n  }\n\n  /**\n   * Unsubscribes off of channel events\n   *\n   * Use the ref returned from a channel.on() to unsubscribe one\n   * handler, or pass nothing for the ref to unsubscribe all\n   * handlers for the given event.\n   *\n   * @example\n   * // Unsubscribe the do_stuff handler\n   * const ref1 = channel.on(\"event\", do_stuff)\n   * channel.off(\"event\", ref1)\n   *\n   * // Unsubscribe all handlers from event\n   * channel.off(\"event\")\n   *\n   * @param {string} event\n   * @param {integer} ref\n   */\n  off(event, ref){\n    this.bindings = this.bindings.filter((bind) => {\n      return !(bind.event === event && (typeof ref === \"undefined\" || ref === bind.ref))\n    })\n  }\n\n  /**\n   * @private\n   */\n  canPush(){ return this.socket.isConnected() && this.isJoined() }\n\n  /**\n   * Sends a message `event` to phoenix with the payload `payload`.\n   * Phoenix receives this in the `handle_in(event, payload, socket)`\n   * function. if phoenix replies or it times out (default 10000ms),\n   * then optionally the reply can be received.\n   *\n   * @example\n   * channel.push(\"event\")\n   *   .receive(\"ok\", payload => console.log(\"phoenix replied:\", payload))\n   *   .receive(\"error\", err => console.log(\"phoenix errored\", err))\n   *   .receive(\"timeout\", () => console.log(\"timed out pushing\"))\n   * @param {string} event\n   * @param {Object} payload\n   * @param {number} [timeout]\n   * @returns {Push}\n   */\n  push(event, payload, timeout = this.timeout){\n    payload = payload || {}\n    if(!this.joinedOnce){\n      throw new Error(`tried to push '${event}' to '${this.topic}' before joining. Use channel.join() before pushing events`)\n    }\n    let pushEvent = new Push(this, event, function (){ return payload }, timeout)\n    if(this.canPush()){\n      pushEvent.send()\n    } else {\n      pushEvent.startTimeout()\n      this.pushBuffer.push(pushEvent)\n    }\n\n    return pushEvent\n  }\n\n  /** Leaves the channel\n   *\n   * Unsubscribes from server events, and\n   * instructs channel to terminate on server\n   *\n   * Triggers onClose() hooks\n   *\n   * To receive leave acknowledgements, use the `receive`\n   * hook to bind to the server ack, ie:\n   *\n   * @example\n   * channel.leave().receive(\"ok\", () => alert(\"left!\") )\n   *\n   * @param {integer} timeout\n   * @returns {Push}\n   */\n  leave(timeout = this.timeout){\n    this.rejoinTimer.reset()\n    this.joinPush.cancelTimeout()\n\n    this.state = CHANNEL_STATES.leaving\n    let onClose = () => {\n      if(this.socket.hasLogger()) this.socket.log(\"channel\", `leave ${this.topic}`)\n      this.trigger(CHANNEL_EVENTS.close, \"leave\")\n    }\n    let leavePush = new Push(this, CHANNEL_EVENTS.leave, closure({}), timeout)\n    leavePush.receive(\"ok\", () => onClose())\n      .receive(\"timeout\", () => onClose())\n    leavePush.send()\n    if(!this.canPush()){ leavePush.trigger(\"ok\", {}) }\n\n    return leavePush\n  }\n\n  /**\n   * Overridable message hook\n   *\n   * Receives all events for specialized message handling\n   * before dispatching to the channel callbacks.\n   *\n   * Must return the payload, modified or unmodified\n   * @param {string} event\n   * @param {Object} payload\n   * @param {integer} ref\n   * @returns {Object}\n   */\n  onMessage(_event, payload, _ref){ return payload }\n\n  /**\n   * @private\n   */\n  isMember(topic, event, payload, joinRef){\n    if(this.topic !== topic){ return false }\n\n    if(joinRef && joinRef !== this.joinRef()){\n      if(this.socket.hasLogger()) this.socket.log(\"channel\", \"dropping outdated message\", {topic, event, payload, joinRef})\n      return false\n    } else {\n      return true\n    }\n  }\n\n  /**\n   * @private\n   */\n  joinRef(){ return this.joinPush.ref }\n\n  /**\n   * @private\n   */\n  rejoin(timeout = this.timeout){\n    if(this.isLeaving()){ return }\n    this.socket.leaveOpenTopic(this.topic)\n    this.state = CHANNEL_STATES.joining\n    this.joinPush.resend(timeout)\n  }\n\n  /**\n   * @private\n   */\n  trigger(event, payload, ref, joinRef){\n    let handledPayload = this.onMessage(event, payload, ref, joinRef)\n    if(payload && !handledPayload){ throw new Error(\"channel onMessage callbacks must return the payload, modified or unmodified\") }\n\n    let eventBindings = this.bindings.filter(bind => bind.event === event)\n\n    for(let i = 0; i < eventBindings.length; i++){\n      let bind = eventBindings[i]\n      bind.callback(handledPayload, ref, joinRef || this.joinRef())\n    }\n  }\n\n  /**\n   * @private\n   */\n  replyEventName(ref){ return `chan_reply_${ref}` }\n\n  /**\n   * @private\n   */\n  isClosed(){ return this.state === CHANNEL_STATES.closed }\n\n  /**\n   * @private\n   */\n  isErrored(){ return this.state === CHANNEL_STATES.errored }\n\n  /**\n   * @private\n   */\n  isJoined(){ return this.state === CHANNEL_STATES.joined }\n\n  /**\n   * @private\n   */\n  isJoining(){ return this.state === CHANNEL_STATES.joining }\n\n  /**\n   * @private\n   */\n  isLeaving(){ return this.state === CHANNEL_STATES.leaving }\n}\n", "import {\n  global,\n  XHR_STATES\n} from \"./constants\"\n\nexport default class Ajax {\n\n  static request(method, endPoint, accept, body, timeout, ontimeout, callback){\n    if(global.XDomainRequest){\n      let req = new global.XDomainRequest() // IE8, IE9\n      return this.xdomainRequest(req, method, endPoint, body, timeout, ontimeout, callback)\n    } else {\n      let req = new global.XMLHttpRequest() // IE7+, Firefox, Chrome, Opera, Safari\n      return this.xhrRequest(req, method, endPoint, accept, body, timeout, ontimeout, callback)\n    }\n  }\n\n  static xdomainRequest(req, method, endPoint, body, timeout, ontimeout, callback){\n    req.timeout = timeout\n    req.open(method, endPoint)\n    req.onload = () => {\n      let response = this.parseJSON(req.responseText)\n      callback && callback(response)\n    }\n    if(ontimeout){ req.ontimeout = ontimeout }\n\n    // Work around bug in IE9 that requires an attached onprogress handler\n    req.onprogress = () => { }\n\n    req.send(body)\n    return req\n  }\n\n  static xhrRequest(req, method, endPoint, accept, body, timeout, ontimeout, callback){\n    req.open(method, endPoint, true)\n    req.timeout = timeout\n    req.setRequestHeader(\"Content-Type\", accept)\n    req.onerror = () => callback && callback(null)\n    req.onreadystatechange = () => {\n      if(req.readyState === XHR_STATES.complete && callback){\n        let response = this.parseJSON(req.responseText)\n        callback(response)\n      }\n    }\n    if(ontimeout){ req.ontimeout = ontimeout }\n\n    req.send(body)\n    return req\n  }\n\n  static parseJSON(resp){\n    if(!resp || resp === \"\"){ return null }\n\n    try {\n      return JSON.parse(resp)\n    } catch (e){\n      console && console.log(\"failed to parse JSON response\", resp)\n      return null\n    }\n  }\n\n  static serialize(obj, parentKey){\n    let queryStr = []\n    for(var key in obj){\n      if(!Object.prototype.hasOwnProperty.call(obj, key)){ continue }\n      let paramKey = parentKey ? `${parentKey}[${key}]` : key\n      let paramVal = obj[key]\n      if(typeof paramVal === \"object\"){\n        queryStr.push(this.serialize(paramVal, paramKey))\n      } else {\n        queryStr.push(encodeURIComponent(paramKey) + \"=\" + encodeURIComponent(paramVal))\n      }\n    }\n    return queryStr.join(\"&\")\n  }\n\n  static appendParams(url, params){\n    if(Object.keys(params).length === 0){ return url }\n\n    let prefix = url.match(/\\?/) ? \"&\" : \"?\"\n    return `${url}${prefix}${this.serialize(params)}`\n  }\n}\n", "import {\n  SOCKET_STATES,\n  TRANSPORTS\n} from \"./constants\"\n\nimport Ajax from \"./ajax\"\n\nlet arrayBufferToBase64 = (buffer) => {\n  let binary = \"\"\n  let bytes = new Uint8Array(buffer)\n  let len = bytes.byteLength\n  for(let i = 0; i < len; i++){ binary += String.fromCharCode(bytes[i]) }\n  return btoa(binary)\n}\n\nexport default class LongPoll {\n\n  constructor(endPoint){\n    this.endPoint = null\n    this.token = null\n    this.skipHeartbeat = true\n    this.reqs = new Set()\n    this.awaitingBatchAck = false\n    this.currentBatch = null\n    this.currentBatchTimer = null\n    this.batchBuffer = []\n    this.onopen = function (){ } // noop\n    this.onerror = function (){ } // noop\n    this.onmessage = function (){ } // noop\n    this.onclose = function (){ } // noop\n    this.pollEndpoint = this.normalizeEndpoint(endPoint)\n    this.readyState = SOCKET_STATES.connecting\n    // we must wait for the caller to finish setting up our callbacks and timeout properties\n    setTimeout(() => this.poll(), 0)\n  }\n\n  normalizeEndpoint(endPoint){\n    return (endPoint\n      .replace(\"ws://\", \"http://\")\n      .replace(\"wss://\", \"https://\")\n      .replace(new RegExp(\"(.*)\\/\" + TRANSPORTS.websocket), \"$1/\" + TRANSPORTS.longpoll))\n  }\n\n  endpointURL(){\n    return Ajax.appendParams(this.pollEndpoint, {token: this.token})\n  }\n\n  closeAndRetry(code, reason, wasClean){\n    this.close(code, reason, wasClean)\n    this.readyState = SOCKET_STATES.connecting\n  }\n\n  ontimeout(){\n    this.onerror(\"timeout\")\n    this.closeAndRetry(1005, \"timeout\", false)\n  }\n\n  isActive(){ return this.readyState === SOCKET_STATES.open || this.readyState === SOCKET_STATES.connecting }\n\n  poll(){\n    this.ajax(\"GET\", \"application/json\", null, () => this.ontimeout(), resp => {\n      if(resp){\n        var {status, token, messages} = resp\n        this.token = token\n      } else {\n        status = 0\n      }\n\n      switch(status){\n        case 200:\n          messages.forEach(msg => {\n            // Tasks are what things like event handlers, setTimeout callbacks,\n            // promise resolves and more are run within.\n            // In modern browsers, there are two different kinds of tasks,\n            // microtasks and macrotasks.\n            // Microtasks are mainly used for Promises, while macrotasks are\n            // used for everything else.\n            // Microtasks always have priority over macrotasks. If the JS engine\n            // is looking for a task to run, it will always try to empty the\n            // microtask queue before attempting to run anything from the\n            // macrotask queue.\n            //\n            // For the WebSocket transport, messages always arrive in their own\n            // event. This means that if any promises are resolved from within,\n            // their callbacks will always finish execution by the time the\n            // next message event handler is run.\n            //\n            // In order to emulate this behaviour, we need to make sure each\n            // onmessage handler is run within its own macrotask.\n            setTimeout(() => this.onmessage({data: msg}), 0)\n          })\n          this.poll()\n          break\n        case 204:\n          this.poll()\n          break\n        case 410:\n          this.readyState = SOCKET_STATES.open\n          this.onopen({})\n          this.poll()\n          break\n        case 403:\n          this.onerror(403)\n          this.close(1008, \"forbidden\", false)\n          break\n        case 0:\n        case 500:\n          this.onerror(500)\n          this.closeAndRetry(1011, \"internal server error\", 500)\n          break\n        default: throw new Error(`unhandled poll status ${status}`)\n      }\n    })\n  }\n\n  // we collect all pushes within the current event loop by\n  // setTimeout 0, which optimizes back-to-back procedural\n  // pushes against an empty buffer\n\n  send(body){\n    if(typeof(body) !== \"string\"){ body = arrayBufferToBase64(body) }\n    if(this.currentBatch){\n      this.currentBatch.push(body)\n    } else if(this.awaitingBatchAck){\n      this.batchBuffer.push(body)\n    } else {\n      this.currentBatch = [body]\n      this.currentBatchTimer = setTimeout(() => {\n        this.batchSend(this.currentBatch)\n        this.currentBatch = null\n      }, 0)\n    }\n  }\n\n  batchSend(messages){\n    this.awaitingBatchAck = true\n    this.ajax(\"POST\", \"application/x-ndjson\", messages.join(\"\\n\"), () => this.onerror(\"timeout\"), resp => {\n      this.awaitingBatchAck = false\n      if(!resp || resp.status !== 200){\n        this.onerror(resp && resp.status)\n        this.closeAndRetry(1011, \"internal server error\", false)\n      } else if(this.batchBuffer.length > 0){\n        this.batchSend(this.batchBuffer)\n        this.batchBuffer = []\n      }\n    })\n  }\n\n  close(code, reason, wasClean){\n    for(let req of this.reqs){ req.abort() }\n    this.readyState = SOCKET_STATES.closed\n    let opts = Object.assign({code: 1000, reason: undefined, wasClean: true}, {code, reason, wasClean})\n    this.batchBuffer = []\n    clearTimeout(this.currentBatchTimer)\n    this.currentBatchTimer = null\n    if(typeof(CloseEvent) !== \"undefined\"){\n      this.onclose(new CloseEvent(\"close\", opts))\n    } else {\n      this.onclose(opts)\n    }\n  }\n\n  ajax(method, contentType, body, onCallerTimeout, callback){\n    let req\n    let ontimeout = () => {\n      this.reqs.delete(req)\n      onCallerTimeout()\n    }\n    req = Ajax.request(method, this.endpointURL(), contentType, body, this.timeout, ontimeout, resp => {\n      this.reqs.delete(req)\n      if(this.isActive()){ callback(resp) }\n    })\n    this.reqs.add(req)\n  }\n}\n", "/**\n * Initializes the Presence\n * @param {Channel} channel - The Channel\n * @param {Object} opts - The options,\n *        for example `{events: {state: \"state\", diff: \"diff\"}}`\n */\nexport default class Presence {\n\n  constructor(channel, opts = {}){\n    let events = opts.events || {state: \"presence_state\", diff: \"presence_diff\"}\n    this.state = {}\n    this.pendingDiffs = []\n    this.channel = channel\n    this.joinRef = null\n    this.caller = {\n      onJoin: function (){ },\n      onLeave: function (){ },\n      onSync: function (){ }\n    }\n\n    this.channel.on(events.state, newState => {\n      let {onJoin, onLeave, onSync} = this.caller\n\n      this.joinRef = this.channel.joinRef()\n      this.state = Presence.syncState(this.state, newState, onJoin, onLeave)\n\n      this.pendingDiffs.forEach(diff => {\n        this.state = Presence.syncDiff(this.state, diff, onJoin, onLeave)\n      })\n      this.pendingDiffs = []\n      onSync()\n    })\n\n    this.channel.on(events.diff, diff => {\n      let {onJoin, onLeave, onSync} = this.caller\n\n      if(this.inPendingSyncState()){\n        this.pendingDiffs.push(diff)\n      } else {\n        this.state = Presence.syncDiff(this.state, diff, onJoin, onLeave)\n        onSync()\n      }\n    })\n  }\n\n  onJoin(callback){ this.caller.onJoin = callback }\n\n  onLeave(callback){ this.caller.onLeave = callback }\n\n  onSync(callback){ this.caller.onSync = callback }\n\n  list(by){ return Presence.list(this.state, by) }\n\n  inPendingSyncState(){\n    return !this.joinRef || (this.joinRef !== this.channel.joinRef())\n  }\n\n  // lower-level public static API\n\n  /**\n   * Used to sync the list of presences on the server\n   * with the client's state. An optional `onJoin` and `onLeave` callback can\n   * be provided to react to changes in the client's local presences across\n   * disconnects and reconnects with the server.\n   *\n   * @returns {Presence}\n   */\n  static syncState(currentState, newState, onJoin, onLeave){\n    let state = this.clone(currentState)\n    let joins = {}\n    let leaves = {}\n\n    this.map(state, (key, presence) => {\n      if(!newState[key]){\n        leaves[key] = presence\n      }\n    })\n    this.map(newState, (key, newPresence) => {\n      let currentPresence = state[key]\n      if(currentPresence){\n        let newRefs = newPresence.metas.map(m => m.phx_ref)\n        let curRefs = currentPresence.metas.map(m => m.phx_ref)\n        let joinedMetas = newPresence.metas.filter(m => curRefs.indexOf(m.phx_ref) < 0)\n        let leftMetas = currentPresence.metas.filter(m => newRefs.indexOf(m.phx_ref) < 0)\n        if(joinedMetas.length > 0){\n          joins[key] = newPresence\n          joins[key].metas = joinedMetas\n        }\n        if(leftMetas.length > 0){\n          leaves[key] = this.clone(currentPresence)\n          leaves[key].metas = leftMetas\n        }\n      } else {\n        joins[key] = newPresence\n      }\n    })\n    return this.syncDiff(state, {joins: joins, leaves: leaves}, onJoin, onLeave)\n  }\n\n  /**\n   *\n   * Used to sync a diff of presence join and leave\n   * events from the server, as they happen. Like `syncState`, `syncDiff`\n   * accepts optional `onJoin` and `onLeave` callbacks to react to a user\n   * joining or leaving from a device.\n   *\n   * @returns {Presence}\n   */\n  static syncDiff(state, diff, onJoin, onLeave){\n    let {joins, leaves} = this.clone(diff)\n    if(!onJoin){ onJoin = function (){ } }\n    if(!onLeave){ onLeave = function (){ } }\n\n    this.map(joins, (key, newPresence) => {\n      let currentPresence = state[key]\n      state[key] = this.clone(newPresence)\n      if(currentPresence){\n        let joinedRefs = state[key].metas.map(m => m.phx_ref)\n        let curMetas = currentPresence.metas.filter(m => joinedRefs.indexOf(m.phx_ref) < 0)\n        state[key].metas.unshift(...curMetas)\n      }\n      onJoin(key, currentPresence, newPresence)\n    })\n    this.map(leaves, (key, leftPresence) => {\n      let currentPresence = state[key]\n      if(!currentPresence){ return }\n      let refsToRemove = leftPresence.metas.map(m => m.phx_ref)\n      currentPresence.metas = currentPresence.metas.filter(p => {\n        return refsToRemove.indexOf(p.phx_ref) < 0\n      })\n      onLeave(key, currentPresence, leftPresence)\n      if(currentPresence.metas.length === 0){\n        delete state[key]\n      }\n    })\n    return state\n  }\n\n  /**\n   * Returns the array of presences, with selected metadata.\n   *\n   * @param {Object} presences\n   * @param {Function} chooser\n   *\n   * @returns {Presence}\n   */\n  static list(presences, chooser){\n    if(!chooser){ chooser = function (key, pres){ return pres } }\n\n    return this.map(presences, (key, presence) => {\n      return chooser(key, presence)\n    })\n  }\n\n  // private\n\n  static map(obj, func){\n    return Object.getOwnPropertyNames(obj).map(key => func(key, obj[key]))\n  }\n\n  static clone(obj){ return JSON.parse(JSON.stringify(obj)) }\n}\n", "/* The default serializer for encoding and decoding messages */\nimport {\n  CHANNEL_EVENTS\n} from \"./constants\"\n\nexport default {\n  HEADER_LENGTH: 1,\n  META_LENGTH: 4,\n  KINDS: {push: 0, reply: 1, broadcast: 2},\n\n  encode(msg, callback){\n    if(msg.payload.constructor === ArrayBuffer){\n      return callback(this.binaryEncode(msg))\n    } else {\n      let payload = [msg.join_ref, msg.ref, msg.topic, msg.event, msg.payload]\n      return callback(JSON.stringify(payload))\n    }\n  },\n\n  decode(rawPayload, callback){\n    if(rawPayload.constructor === ArrayBuffer){\n      return callback(this.binaryDecode(rawPayload))\n    } else {\n      let [join_ref, ref, topic, event, payload] = JSON.parse(rawPayload)\n      return callback({join_ref, ref, topic, event, payload})\n    }\n  },\n\n  // private\n\n  binaryEncode(message){\n    let {join_ref, ref, event, topic, payload} = message\n    let metaLength = this.META_LENGTH + join_ref.length + ref.length + topic.length + event.length\n    let header = new ArrayBuffer(this.HEADER_LENGTH + metaLength)\n    let view = new DataView(header)\n    let offset = 0\n\n    view.setUint8(offset++, this.KINDS.push) // kind\n    view.setUint8(offset++, join_ref.length)\n    view.setUint8(offset++, ref.length)\n    view.setUint8(offset++, topic.length)\n    view.setUint8(offset++, event.length)\n    Array.from(join_ref, char => view.setUint8(offset++, char.charCodeAt(0)))\n    Array.from(ref, char => view.setUint8(offset++, char.charCodeAt(0)))\n    Array.from(topic, char => view.setUint8(offset++, char.charCodeAt(0)))\n    Array.from(event, char => view.setUint8(offset++, char.charCodeAt(0)))\n\n    var combined = new Uint8Array(header.byteLength + payload.byteLength)\n    combined.set(new Uint8Array(header), 0)\n    combined.set(new Uint8Array(payload), header.byteLength)\n\n    return combined.buffer\n  },\n\n  binaryDecode(buffer){\n    let view = new DataView(buffer)\n    let kind = view.getUint8(0)\n    let decoder = new TextDecoder()\n    switch(kind){\n      case this.KINDS.push: return this.decodePush(buffer, view, decoder)\n      case this.KINDS.reply: return this.decodeReply(buffer, view, decoder)\n      case this.KINDS.broadcast: return this.decodeBroadcast(buffer, view, decoder)\n    }\n  },\n\n  decodePush(buffer, view, decoder){\n    let joinRefSize = view.getUint8(1)\n    let topicSize = view.getUint8(2)\n    let eventSize = view.getUint8(3)\n    let offset = this.HEADER_LENGTH + this.META_LENGTH - 1 // pushes have no ref\n    let joinRef = decoder.decode(buffer.slice(offset, offset + joinRefSize))\n    offset = offset + joinRefSize\n    let topic = decoder.decode(buffer.slice(offset, offset + topicSize))\n    offset = offset + topicSize\n    let event = decoder.decode(buffer.slice(offset, offset + eventSize))\n    offset = offset + eventSize\n    let data = buffer.slice(offset, buffer.byteLength)\n    return {join_ref: joinRef, ref: null, topic: topic, event: event, payload: data}\n  },\n\n  decodeReply(buffer, view, decoder){\n    let joinRefSize = view.getUint8(1)\n    let refSize = view.getUint8(2)\n    let topicSize = view.getUint8(3)\n    let eventSize = view.getUint8(4)\n    let offset = this.HEADER_LENGTH + this.META_LENGTH\n    let joinRef = decoder.decode(buffer.slice(offset, offset + joinRefSize))\n    offset = offset + joinRefSize\n    let ref = decoder.decode(buffer.slice(offset, offset + refSize))\n    offset = offset + refSize\n    let topic = decoder.decode(buffer.slice(offset, offset + topicSize))\n    offset = offset + topicSize\n    let event = decoder.decode(buffer.slice(offset, offset + eventSize))\n    offset = offset + eventSize\n    let data = buffer.slice(offset, buffer.byteLength)\n    let payload = {status: event, response: data}\n    return {join_ref: joinRef, ref: ref, topic: topic, event: CHANNEL_EVENTS.reply, payload: payload}\n  },\n\n  decodeBroadcast(buffer, view, decoder){\n    let topicSize = view.getUint8(1)\n    let eventSize = view.getUint8(2)\n    let offset = this.HEADER_LENGTH + 2\n    let topic = decoder.decode(buffer.slice(offset, offset + topicSize))\n    offset = offset + topicSize\n    let event = decoder.decode(buffer.slice(offset, offset + eventSize))\n    offset = offset + eventSize\n    let data = buffer.slice(offset, buffer.byteLength)\n\n    return {join_ref: null, ref: null, topic: topic, event: event, payload: data}\n  }\n}\n", "import {\n  global,\n  phxWindow,\n  CHANNEL_EVENTS,\n  DEFAULT_TIMEOUT,\n  DEFAULT_VSN,\n  SOCKET_STATES,\n  TRANSPORTS,\n  WS_CLOSE_NORMAL\n} from \"./constants\"\n\nimport {\n  closure\n} from \"./utils\"\n\nimport Ajax from \"./ajax\"\nimport Channel from \"./channel\"\nimport LongPoll from \"./longpoll\"\nimport Serializer from \"./serializer\"\nimport Timer from \"./timer\"\n\n/** Initializes the Socket *\n *\n * For IE8 support use an ES5-shim (https://github.com/es-shims/es5-shim)\n *\n * @param {string} endPoint - The string WebSocket endpoint, ie, `\"ws://example.com/socket\"`,\n *                                               `\"wss://example.com\"`\n *                                               `\"/socket\"` (inherited host & protocol)\n * @param {Object} [opts] - Optional configuration\n * @param {Function} [opts.transport] - The Websocket Transport, for example WebSocket or Phoenix.LongPoll.\n *\n * Defaults to WebSocket with automatic LongPoll fallback if WebSocket is not defined.\n * To fallback to LongPoll when WebSocket attempts fail, use `longPollFallbackMs: 2500`.\n *\n * @param {Function} [opts.longPollFallbackMs] - The millisecond time to attempt the primary transport\n * before falling back to the LongPoll transport. Disabled by default.\n *\n * @param {Function} [opts.debug] - When true, enables debug logging. Default false.\n *\n * @param {Function} [opts.encode] - The function to encode outgoing messages.\n *\n * Defaults to JSON encoder.\n *\n * @param {Function} [opts.decode] - The function to decode incoming messages.\n *\n * Defaults to JSON:\n *\n * ```javascript\n * (payload, callback) => callback(JSON.parse(payload))\n * ```\n *\n * @param {number} [opts.timeout] - The default timeout in milliseconds to trigger push timeouts.\n *\n * Defaults `DEFAULT_TIMEOUT`\n * @param {number} [opts.heartbeatIntervalMs] - The millisec interval to send a heartbeat message\n * @param {number} [opts.reconnectAfterMs] - The optional function that returns the millisec\n * socket reconnect interval.\n *\n * Defaults to stepped backoff of:\n *\n * ```javascript\n * function(tries){\n *   return [10, 50, 100, 150, 200, 250, 500, 1000, 2000][tries - 1] || 5000\n * }\n * ````\n *\n * @param {number} [opts.rejoinAfterMs] - The optional function that returns the millisec\n * rejoin interval for individual channels.\n *\n * ```javascript\n * function(tries){\n *   return [1000, 2000, 5000][tries - 1] || 10000\n * }\n * ````\n *\n * @param {Function} [opts.logger] - The optional function for specialized logging, ie:\n *\n * ```javascript\n * function(kind, msg, data) {\n *   console.log(`${kind}: ${msg}`, data)\n * }\n * ```\n *\n * @param {number} [opts.longpollerTimeout] - The maximum timeout of a long poll AJAX request.\n *\n * Defaults to 20s (double the server long poll timer).\n *\n * @param {(Object|function)} [opts.params] - The optional params to pass when connecting\n * @param {string} [opts.binaryType] - The binary type to use for binary WebSocket frames.\n *\n * Defaults to \"arraybuffer\"\n *\n * @param {vsn} [opts.vsn] - The serializer's protocol version to send on connect.\n *\n * Defaults to DEFAULT_VSN.\n *\n * @param {Object} [opts.sessionStorage] - An optional Storage compatible object\n * Phoenix uses sessionStorage for longpoll fallback history. Overriding the store is\n * useful when Phoenix won't have access to `sessionStorage`. For example, This could\n * happen if a site loads a cross-domain channel in an iframe. Example usage:\n *\n *     class InMemoryStorage {\n *       constructor() { this.storage = {} }\n *       getItem(keyName) { return this.storage[keyName] || null }\n *       removeItem(keyName) { delete this.storage[keyName] }\n *       setItem(keyName, keyValue) { this.storage[keyName] = keyValue }\n *     }\n *\n*/\nexport default class Socket {\n  constructor(endPoint, opts = {}){\n    this.stateChangeCallbacks = {open: [], close: [], error: [], message: []}\n    this.channels = []\n    this.sendBuffer = []\n    this.ref = 0\n    this.timeout = opts.timeout || DEFAULT_TIMEOUT\n    this.transport = opts.transport || global.WebSocket || LongPoll\n    this.primaryPassedHealthCheck = false\n    this.longPollFallbackMs = opts.longPollFallbackMs\n    this.fallbackTimer = null\n    this.sessionStore = opts.sessionStorage || global.sessionStorage\n    this.establishedConnections = 0\n    this.defaultEncoder = Serializer.encode.bind(Serializer)\n    this.defaultDecoder = Serializer.decode.bind(Serializer)\n    this.closeWasClean = false\n    this.binaryType = opts.binaryType || \"arraybuffer\"\n    this.connectClock = 1\n    if(this.transport !== LongPoll){\n      this.encode = opts.encode || this.defaultEncoder\n      this.decode = opts.decode || this.defaultDecoder\n    } else {\n      this.encode = this.defaultEncoder\n      this.decode = this.defaultDecoder\n    }\n    let awaitingConnectionOnPageShow = null\n    if(phxWindow && phxWindow.addEventListener){\n      phxWindow.addEventListener(\"pagehide\", _e => {\n        if(this.conn){\n          this.disconnect()\n          awaitingConnectionOnPageShow = this.connectClock\n        }\n      })\n      phxWindow.addEventListener(\"pageshow\", _e => {\n        if(awaitingConnectionOnPageShow === this.connectClock){\n          awaitingConnectionOnPageShow = null\n          this.connect()\n        }\n      })\n    }\n    this.heartbeatIntervalMs = opts.heartbeatIntervalMs || 30000\n    this.rejoinAfterMs = (tries) => {\n      if(opts.rejoinAfterMs){\n        return opts.rejoinAfterMs(tries)\n      } else {\n        return [1000, 2000, 5000][tries - 1] || 10000\n      }\n    }\n    this.reconnectAfterMs = (tries) => {\n      if(opts.reconnectAfterMs){\n        return opts.reconnectAfterMs(tries)\n      } else {\n        return [10, 50, 100, 150, 200, 250, 500, 1000, 2000][tries - 1] || 5000\n      }\n    }\n    this.logger = opts.logger || null\n    if(!this.logger && opts.debug){\n      this.logger = (kind, msg, data) => { console.log(`${kind}: ${msg}`, data) }\n    }\n    this.longpollerTimeout = opts.longpollerTimeout || 20000\n    this.params = closure(opts.params || {})\n    this.endPoint = `${endPoint}/${TRANSPORTS.websocket}`\n    this.vsn = opts.vsn || DEFAULT_VSN\n    this.heartbeatTimeoutTimer = null\n    this.heartbeatTimer = null\n    this.pendingHeartbeatRef = null\n    this.reconnectTimer = new Timer(() => {\n      this.teardown(() => this.connect())\n    }, this.reconnectAfterMs)\n  }\n\n  /**\n   * Returns the LongPoll transport reference\n   */\n  getLongPollTransport(){ return LongPoll }\n\n  /**\n   * Disconnects and replaces the active transport\n   *\n   * @param {Function} newTransport - The new transport class to instantiate\n   *\n   */\n  replaceTransport(newTransport){\n    this.connectClock++\n    this.closeWasClean = true\n    clearTimeout(this.fallbackTimer)\n    this.reconnectTimer.reset()\n    if(this.conn){\n      this.conn.close()\n      this.conn = null\n    }\n    this.transport = newTransport\n  }\n\n  /**\n   * Returns the socket protocol\n   *\n   * @returns {string}\n   */\n  protocol(){ return location.protocol.match(/^https/) ? \"wss\" : \"ws\" }\n\n  /**\n   * The fully qualified socket url\n   *\n   * @returns {string}\n   */\n  endPointURL(){\n    let uri = Ajax.appendParams(\n      Ajax.appendParams(this.endPoint, this.params()), {vsn: this.vsn})\n    if(uri.charAt(0) !== \"/\"){ return uri }\n    if(uri.charAt(1) === \"/\"){ return `${this.protocol()}:${uri}` }\n\n    return `${this.protocol()}://${location.host}${uri}`\n  }\n\n  /**\n   * Disconnects the socket\n   *\n   * See https://developer.mozilla.org/en-US/docs/Web/API/CloseEvent#Status_codes for valid status codes.\n   *\n   * @param {Function} callback - Optional callback which is called after socket is disconnected.\n   * @param {integer} code - A status code for disconnection (Optional).\n   * @param {string} reason - A textual description of the reason to disconnect. (Optional)\n   */\n  disconnect(callback, code, reason){\n    this.connectClock++\n    this.closeWasClean = true\n    clearTimeout(this.fallbackTimer)\n    this.reconnectTimer.reset()\n    this.teardown(callback, code, reason)\n  }\n\n  /**\n   *\n   * @param {Object} params - The params to send when connecting, for example `{user_id: userToken}`\n   *\n   * Passing params to connect is deprecated; pass them in the Socket constructor instead:\n   * `new Socket(\"/socket\", {params: {user_id: userToken}})`.\n   */\n  connect(params){\n    if(params){\n      console && console.log(\"passing params to connect is deprecated. Instead pass :params to the Socket constructor\")\n      this.params = closure(params)\n    }\n    if(this.conn){ return }\n    if(this.longPollFallbackMs && this.transport !== LongPoll){\n      this.connectWithFallback(LongPoll, this.longPollFallbackMs)\n    } else {\n      this.transportConnect()\n    }\n  }\n\n  /**\n   * Logs the message. Override `this.logger` for specialized logging. noops by default\n   * @param {string} kind\n   * @param {string} msg\n   * @param {Object} data\n   */\n  log(kind, msg, data){ this.logger && this.logger(kind, msg, data) }\n\n  /**\n   * Returns true if a logger has been set on this socket.\n   */\n  hasLogger(){ return this.logger !== null }\n\n  /**\n   * Registers callbacks for connection open events\n   *\n   * @example socket.onOpen(function(){ console.info(\"the socket was opened\") })\n   *\n   * @param {Function} callback\n   */\n  onOpen(callback){\n    let ref = this.makeRef()\n    this.stateChangeCallbacks.open.push([ref, callback])\n    return ref\n  }\n\n  /**\n   * Registers callbacks for connection close events\n   * @param {Function} callback\n   */\n  onClose(callback){\n    let ref = this.makeRef()\n    this.stateChangeCallbacks.close.push([ref, callback])\n    return ref\n  }\n\n  /**\n   * Registers callbacks for connection error events\n   *\n   * @example socket.onError(function(error){ alert(\"An error occurred\") })\n   *\n   * @param {Function} callback\n   */\n  onError(callback){\n    let ref = this.makeRef()\n    this.stateChangeCallbacks.error.push([ref, callback])\n    return ref\n  }\n\n  /**\n   * Registers callbacks for connection message events\n   * @param {Function} callback\n   */\n  onMessage(callback){\n    let ref = this.makeRef()\n    this.stateChangeCallbacks.message.push([ref, callback])\n    return ref\n  }\n\n  /**\n   * Pings the server and invokes the callback with the RTT in milliseconds\n   * @param {Function} callback\n   *\n   * Returns true if the ping was pushed or false if unable to be pushed.\n   */\n  ping(callback){\n    if(!this.isConnected()){ return false }\n    let ref = this.makeRef()\n    let startTime = Date.now()\n    this.push({topic: \"phoenix\", event: \"heartbeat\", payload: {}, ref: ref})\n    let onMsgRef = this.onMessage(msg => {\n      if(msg.ref === ref){\n        this.off([onMsgRef])\n        callback(Date.now() - startTime)\n      }\n    })\n    return true\n  }\n\n  /**\n   * @private\n   */\n\n  transportConnect(){\n    this.connectClock++\n    this.closeWasClean = false\n    this.conn = new this.transport(this.endPointURL())\n    this.conn.binaryType = this.binaryType\n    this.conn.timeout = this.longpollerTimeout\n    this.conn.onopen = () => this.onConnOpen()\n    this.conn.onerror = error => this.onConnError(error)\n    this.conn.onmessage = event => this.onConnMessage(event)\n    this.conn.onclose = event => this.onConnClose(event)\n  }\n\n  getSession(key){ return this.sessionStore && this.sessionStore.getItem(key) }\n\n  storeSession(key, val){ this.sessionStore && this.sessionStore.setItem(key, val) }\n\n  connectWithFallback(fallbackTransport, fallbackThreshold = 2500){\n    clearTimeout(this.fallbackTimer)\n    let established = false\n    let primaryTransport = true\n    let openRef, errorRef\n    let fallback = (reason) => {\n      this.log(\"transport\", `falling back to ${fallbackTransport.name}...`, reason)\n      this.off([openRef, errorRef])\n      primaryTransport = false\n      this.replaceTransport(fallbackTransport)\n      this.transportConnect()\n    }\n    if(this.getSession(`phx:fallback:${fallbackTransport.name}`)){ return fallback(\"memorized\") }\n\n    this.fallbackTimer = setTimeout(fallback, fallbackThreshold)\n\n    errorRef = this.onError(reason => {\n      this.log(\"transport\", \"error\", reason)\n      if(primaryTransport && !established) {\n        clearTimeout(this.fallbackTimer)\n        fallback(reason)\n      }\n    })\n    this.onOpen(() => {\n      established = true\n      if(!primaryTransport){\n        // only memorize LP if we never connected to primary\n        if(!this.primaryPassedHealthCheck){ this.storeSession(`phx:fallback:${fallbackTransport.name}`, \"true\") }\n        return this.log(\"transport\", `established ${fallbackTransport.name} fallback`)\n      }\n      // if we've established primary, give the fallback a new period to attempt ping\n      clearTimeout(this.fallbackTimer)\n      this.fallbackTimer = setTimeout(fallback, fallbackThreshold)\n      this.ping(rtt => {\n        this.log(\"transport\", \"connected to primary after\", rtt)\n        this.primaryPassedHealthCheck = true\n        clearTimeout(this.fallbackTimer)\n      })\n    })\n    this.transportConnect()\n  }\n\n  clearHeartbeats(){\n    clearTimeout(this.heartbeatTimer)\n    clearTimeout(this.heartbeatTimeoutTimer)\n  }\n\n  onConnOpen(){\n    if(this.hasLogger()) this.log(\"transport\", `${this.transport.name} connected to ${this.endPointURL()}`)\n    this.closeWasClean = false\n    this.establishedConnections++\n    this.flushSendBuffer()\n    this.reconnectTimer.reset()\n    this.resetHeartbeat()\n    this.stateChangeCallbacks.open.forEach(([, callback]) => callback())\n  }\n\n  /**\n   * @private\n   */\n\n  heartbeatTimeout(){\n    if(this.pendingHeartbeatRef){\n      this.pendingHeartbeatRef = null\n      if(this.hasLogger()){ this.log(\"transport\", \"heartbeat timeout. Attempting to re-establish connection\") }\n      this.triggerChanError()\n      this.closeWasClean = false\n      this.teardown(() => this.reconnectTimer.scheduleTimeout(), WS_CLOSE_NORMAL, \"heartbeat timeout\")\n    }\n  }\n\n  resetHeartbeat(){\n    if(this.conn && this.conn.skipHeartbeat){ return }\n    this.pendingHeartbeatRef = null\n    this.clearHeartbeats()\n    this.heartbeatTimer = setTimeout(() => this.sendHeartbeat(), this.heartbeatIntervalMs)\n  }\n\n  teardown(callback, code, reason){\n    if(!this.conn){\n      return callback && callback()\n    }\n\n    this.waitForBufferDone(() => {\n      if(this.conn){\n        if(code){ this.conn.close(code, reason || \"\") } else { this.conn.close() }\n      }\n\n      this.waitForSocketClosed(() => {\n        if(this.conn){\n          this.conn.onopen = function (){ } // noop\n          this.conn.onerror = function (){ } // noop\n          this.conn.onmessage = function (){ } // noop\n          this.conn.onclose = function (){ } // noop\n          this.conn = null\n        }\n\n        callback && callback()\n      })\n    })\n  }\n\n  waitForBufferDone(callback, tries = 1){\n    if(tries === 5 || !this.conn || !this.conn.bufferedAmount){\n      callback()\n      return\n    }\n\n    setTimeout(() => {\n      this.waitForBufferDone(callback, tries + 1)\n    }, 150 * tries)\n  }\n\n  waitForSocketClosed(callback, tries = 1){\n    if(tries === 5 || !this.conn || this.conn.readyState === SOCKET_STATES.closed){\n      callback()\n      return\n    }\n\n    setTimeout(() => {\n      this.waitForSocketClosed(callback, tries + 1)\n    }, 150 * tries)\n  }\n\n  onConnClose(event){\n    let closeCode = event && event.code\n    if(this.hasLogger()) this.log(\"transport\", \"close\", event)\n    this.triggerChanError()\n    this.clearHeartbeats()\n    if(!this.closeWasClean && closeCode !== 1000){\n      this.reconnectTimer.scheduleTimeout()\n    }\n    this.stateChangeCallbacks.close.forEach(([, callback]) => callback(event))\n  }\n\n  /**\n   * @private\n   */\n  onConnError(error){\n    if(this.hasLogger()) this.log(\"transport\", error)\n    let transportBefore = this.transport\n    let establishedBefore = this.establishedConnections\n    this.stateChangeCallbacks.error.forEach(([, callback]) => {\n      callback(error, transportBefore, establishedBefore)\n    })\n    if(transportBefore === this.transport || establishedBefore > 0){\n      this.triggerChanError()\n    }\n  }\n\n  /**\n   * @private\n   */\n  triggerChanError(){\n    this.channels.forEach(channel => {\n      if(!(channel.isErrored() || channel.isLeaving() || channel.isClosed())){\n        channel.trigger(CHANNEL_EVENTS.error)\n      }\n    })\n  }\n\n  /**\n   * @returns {string}\n   */\n  connectionState(){\n    switch(this.conn && this.conn.readyState){\n      case SOCKET_STATES.connecting: return \"connecting\"\n      case SOCKET_STATES.open: return \"open\"\n      case SOCKET_STATES.closing: return \"closing\"\n      default: return \"closed\"\n    }\n  }\n\n  /**\n   * @returns {boolean}\n   */\n  isConnected(){ return this.connectionState() === \"open\" }\n\n  /**\n   * @private\n   *\n   * @param {Channel}\n   */\n  remove(channel){\n    this.off(channel.stateChangeRefs)\n    this.channels = this.channels.filter(c => c !== channel)\n  }\n\n  /**\n   * Removes `onOpen`, `onClose`, `onError,` and `onMessage` registrations.\n   *\n   * @param {refs} - list of refs returned by calls to\n   *                 `onOpen`, `onClose`, `onError,` and `onMessage`\n   */\n  off(refs){\n    for(let key in this.stateChangeCallbacks){\n      this.stateChangeCallbacks[key] = this.stateChangeCallbacks[key].filter(([ref]) => {\n        return refs.indexOf(ref) === -1\n      })\n    }\n  }\n\n  /**\n   * Initiates a new channel for the given topic\n   *\n   * @param {string} topic\n   * @param {Object} chanParams - Parameters for the channel\n   * @returns {Channel}\n   */\n  channel(topic, chanParams = {}){\n    let chan = new Channel(topic, chanParams, this)\n    this.channels.push(chan)\n    return chan\n  }\n\n  /**\n   * @param {Object} data\n   */\n  push(data){\n    if(this.hasLogger()){\n      let {topic, event, payload, ref, join_ref} = data\n      this.log(\"push\", `${topic} ${event} (${join_ref}, ${ref})`, payload)\n    }\n\n    if(this.isConnected()){\n      this.encode(data, result => this.conn.send(result))\n    } else {\n      this.sendBuffer.push(() => this.encode(data, result => this.conn.send(result)))\n    }\n  }\n\n  /**\n   * Return the next message ref, accounting for overflows\n   * @returns {string}\n   */\n  makeRef(){\n    let newRef = this.ref + 1\n    if(newRef === this.ref){ this.ref = 0 } else { this.ref = newRef }\n\n    return this.ref.toString()\n  }\n\n  sendHeartbeat(){\n    if(this.pendingHeartbeatRef && !this.isConnected()){ return }\n    this.pendingHeartbeatRef = this.makeRef()\n    this.push({topic: \"phoenix\", event: \"heartbeat\", payload: {}, ref: this.pendingHeartbeatRef})\n    this.heartbeatTimeoutTimer = setTimeout(() => this.heartbeatTimeout(), this.heartbeatIntervalMs)\n  }\n\n  flushSendBuffer(){\n    if(this.isConnected() && this.sendBuffer.length > 0){\n      this.sendBuffer.forEach(callback => callback())\n      this.sendBuffer = []\n    }\n  }\n\n  onConnMessage(rawMessage){\n    this.decode(rawMessage.data, msg => {\n      let {topic, event, payload, ref, join_ref} = msg\n      if(ref && ref === this.pendingHeartbeatRef){\n        this.clearHeartbeats()\n        this.pendingHeartbeatRef = null\n        this.heartbeatTimer = setTimeout(() => this.sendHeartbeat(), this.heartbeatIntervalMs)\n      }\n\n      if(this.hasLogger()) this.log(\"receive\", `${payload.status || \"\"} ${topic} ${event} ${ref && \"(\" + ref + \")\" || \"\"}`, payload)\n\n      for(let i = 0; i < this.channels.length; i++){\n        const channel = this.channels[i]\n        if(!channel.isMember(topic, event, payload, join_ref)){ continue }\n        channel.trigger(event, payload, ref, join_ref)\n      }\n\n      for(let i = 0; i < this.stateChangeCallbacks.message.length; i++){\n        let [, callback] = this.stateChangeCallbacks.message[i]\n        callback(msg)\n      }\n    })\n  }\n\n  leaveOpenTopic(topic){\n    let dupChannel = this.channels.find(c => c.topic === topic && (c.isJoined() || c.isJoining()))\n    if(dupChannel){\n      if(this.hasLogger()) this.log(\"transport\", `leaving duplicate topic \"${topic}\"`)\n      dupChannel.leave()\n    }\n  }\n}\n"],
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+  "sourcesContent": ["// wraps value in closure or returns closure\nexport let closure = (value) => {\n  if(typeof value === \"function\"){\n    return value\n  } else {\n    let closure = function (){ return value }\n    return closure\n  }\n}\n", "export const globalSelf = typeof self !== \"undefined\" ? self : null\nexport const phxWindow = typeof window !== \"undefined\" ? window : null\nexport const global = globalSelf || phxWindow || global\nexport const DEFAULT_VSN = \"2.0.0\"\nexport const SOCKET_STATES = {connecting: 0, open: 1, closing: 2, closed: 3}\nexport const DEFAULT_TIMEOUT = 10000\nexport const WS_CLOSE_NORMAL = 1000\nexport const CHANNEL_STATES = {\n  closed: \"closed\",\n  errored: \"errored\",\n  joined: \"joined\",\n  joining: \"joining\",\n  leaving: \"leaving\",\n}\nexport const CHANNEL_EVENTS = {\n  close: \"phx_close\",\n  error: \"phx_error\",\n  join: \"phx_join\",\n  reply: \"phx_reply\",\n  leave: \"phx_leave\"\n}\n\nexport const TRANSPORTS = {\n  longpoll: \"longpoll\",\n  websocket: \"websocket\"\n}\nexport const XHR_STATES = {\n  complete: 4\n}\n", "/**\n * Initializes the Push\n * @param {Channel} channel - The Channel\n * @param {string} event - The event, for example `\"phx_join\"`\n * @param {Object} payload - The payload, for example `{user_id: 123}`\n * @param {number} timeout - The push timeout in milliseconds\n */\nexport default class Push {\n  constructor(channel, event, payload, timeout){\n    this.channel = channel\n    this.event = event\n    this.payload = payload || function (){ return {} }\n    this.receivedResp = null\n    this.timeout = timeout\n    this.timeoutTimer = null\n    this.recHooks = []\n    this.sent = false\n  }\n\n  /**\n   *\n   * @param {number} timeout\n   */\n  resend(timeout){\n    this.timeout = timeout\n    this.reset()\n    this.send()\n  }\n\n  /**\n   *\n   */\n  send(){\n    if(this.hasReceived(\"timeout\")){ return }\n    this.startTimeout()\n    this.sent = true\n    this.channel.socket.push({\n      topic: this.channel.topic,\n      event: this.event,\n      payload: this.payload(),\n      ref: this.ref,\n      join_ref: this.channel.joinRef()\n    })\n  }\n\n  /**\n   *\n   * @param {*} status\n   * @param {*} callback\n   */\n  receive(status, callback){\n    if(this.hasReceived(status)){\n      callback(this.receivedResp.response)\n    }\n\n    this.recHooks.push({status, callback})\n    return this\n  }\n\n  /**\n   * @private\n   */\n  reset(){\n    this.cancelRefEvent()\n    this.ref = null\n    this.refEvent = null\n    this.receivedResp = null\n    this.sent = false\n  }\n\n  /**\n   * @private\n   */\n  matchReceive({status, response, _ref}){\n    this.recHooks.filter(h => h.status === status)\n      .forEach(h => h.callback(response))\n  }\n\n  /**\n   * @private\n   */\n  cancelRefEvent(){\n    if(!this.refEvent){ return }\n    this.channel.off(this.refEvent)\n  }\n\n  /**\n   * @private\n   */\n  cancelTimeout(){\n    clearTimeout(this.timeoutTimer)\n    this.timeoutTimer = null\n  }\n\n  /**\n   * @private\n   */\n  startTimeout(){\n    if(this.timeoutTimer){ this.cancelTimeout() }\n    this.ref = this.channel.socket.makeRef()\n    this.refEvent = this.channel.replyEventName(this.ref)\n\n    this.channel.on(this.refEvent, payload => {\n      this.cancelRefEvent()\n      this.cancelTimeout()\n      this.receivedResp = payload\n      this.matchReceive(payload)\n    })\n\n    this.timeoutTimer = setTimeout(() => {\n      this.trigger(\"timeout\", {})\n    }, this.timeout)\n  }\n\n  /**\n   * @private\n   */\n  hasReceived(status){\n    return this.receivedResp && this.receivedResp.status === status\n  }\n\n  /**\n   * @private\n   */\n  trigger(status, response){\n    this.channel.trigger(this.refEvent, {status, response})\n  }\n}\n", "/**\n *\n * Creates a timer that accepts a `timerCalc` function to perform\n * calculated timeout retries, such as exponential backoff.\n *\n * @example\n * let reconnectTimer = new Timer(() => this.connect(), function(tries){\n *   return [1000, 5000, 10000][tries - 1] || 10000\n * })\n * reconnectTimer.scheduleTimeout() // fires after 1000\n * reconnectTimer.scheduleTimeout() // fires after 5000\n * reconnectTimer.reset()\n * reconnectTimer.scheduleTimeout() // fires after 1000\n *\n * @param {Function} callback\n * @param {Function} timerCalc\n */\nexport default class Timer {\n  constructor(callback, timerCalc){\n    this.callback = callback\n    this.timerCalc = timerCalc\n    this.timer = null\n    this.tries = 0\n  }\n\n  reset(){\n    this.tries = 0\n    clearTimeout(this.timer)\n  }\n\n  /**\n   * Cancels any previous scheduleTimeout and schedules callback\n   */\n  scheduleTimeout(){\n    clearTimeout(this.timer)\n\n    this.timer = setTimeout(() => {\n      this.tries = this.tries + 1\n      this.callback()\n    }, this.timerCalc(this.tries + 1))\n  }\n}\n", "import {closure} from \"./utils\"\nimport {\n  CHANNEL_EVENTS,\n  CHANNEL_STATES,\n} from \"./constants\"\n\nimport Push from \"./push\"\nimport Timer from \"./timer\"\n\n/**\n *\n * @param {string} topic\n * @param {(Object|function)} params\n * @param {Socket} socket\n */\nexport default class Channel {\n  constructor(topic, params, socket){\n    this.state = CHANNEL_STATES.closed\n    this.topic = topic\n    this.params = closure(params || {})\n    this.socket = socket\n    this.bindings = []\n    this.bindingRef = 0\n    this.timeout = this.socket.timeout\n    this.joinedOnce = false\n    this.joinPush = new Push(this, CHANNEL_EVENTS.join, this.params, this.timeout)\n    this.pushBuffer = []\n    this.stateChangeRefs = []\n\n    this.rejoinTimer = new Timer(() => {\n      if(this.socket.isConnected()){ this.rejoin() }\n    }, this.socket.rejoinAfterMs)\n    this.stateChangeRefs.push(this.socket.onError(() => this.rejoinTimer.reset()))\n    this.stateChangeRefs.push(this.socket.onOpen(() => {\n      this.rejoinTimer.reset()\n      if(this.isErrored()){ this.rejoin() }\n    })\n    )\n    this.joinPush.receive(\"ok\", () => {\n      this.state = CHANNEL_STATES.joined\n      this.rejoinTimer.reset()\n      this.pushBuffer.forEach(pushEvent => pushEvent.send())\n      this.pushBuffer = []\n    })\n    this.joinPush.receive(\"error\", () => {\n      this.state = CHANNEL_STATES.errored\n      if(this.socket.isConnected()){ this.rejoinTimer.scheduleTimeout() }\n    })\n    this.onClose(() => {\n      this.rejoinTimer.reset()\n      if(this.socket.hasLogger()) this.socket.log(\"channel\", `close ${this.topic} ${this.joinRef()}`)\n      this.state = CHANNEL_STATES.closed\n      this.socket.remove(this)\n    })\n    this.onError(reason => {\n      if(this.socket.hasLogger()) this.socket.log(\"channel\", `error ${this.topic}`, reason)\n      if(this.isJoining()){ this.joinPush.reset() }\n      this.state = CHANNEL_STATES.errored\n      if(this.socket.isConnected()){ this.rejoinTimer.scheduleTimeout() }\n    })\n    this.joinPush.receive(\"timeout\", () => {\n      if(this.socket.hasLogger()) this.socket.log(\"channel\", `timeout ${this.topic} (${this.joinRef()})`, this.joinPush.timeout)\n      let leavePush = new Push(this, CHANNEL_EVENTS.leave, closure({}), this.timeout)\n      leavePush.send()\n      this.state = CHANNEL_STATES.errored\n      this.joinPush.reset()\n      if(this.socket.isConnected()){ this.rejoinTimer.scheduleTimeout() }\n    })\n    this.on(CHANNEL_EVENTS.reply, (payload, ref) => {\n      this.trigger(this.replyEventName(ref), payload)\n    })\n  }\n\n  /**\n   * Join the channel\n   * @param {integer} timeout\n   * @returns {Push}\n   */\n  join(timeout = this.timeout){\n    if(this.joinedOnce){\n      throw new Error(\"tried to join multiple times. 'join' can only be called a single time per channel instance\")\n    } else {\n      this.timeout = timeout\n      this.joinedOnce = true\n      this.rejoin()\n      return this.joinPush\n    }\n  }\n\n  /**\n   * Hook into channel close\n   * @param {Function} callback\n   */\n  onClose(callback){\n    this.on(CHANNEL_EVENTS.close, callback)\n  }\n\n  /**\n   * Hook into channel errors\n   * @param {Function} callback\n   */\n  onError(callback){\n    return this.on(CHANNEL_EVENTS.error, reason => callback(reason))\n  }\n\n  /**\n   * Subscribes on channel events\n   *\n   * Subscription returns a ref counter, which can be used later to\n   * unsubscribe the exact event listener\n   *\n   * @example\n   * const ref1 = channel.on(\"event\", do_stuff)\n   * const ref2 = channel.on(\"event\", do_other_stuff)\n   * channel.off(\"event\", ref1)\n   * // Since unsubscription, do_stuff won't fire,\n   * // while do_other_stuff will keep firing on the \"event\"\n   *\n   * @param {string} event\n   * @param {Function} callback\n   * @returns {integer} ref\n   */\n  on(event, callback){\n    let ref = this.bindingRef++\n    this.bindings.push({event, ref, callback})\n    return ref\n  }\n\n  /**\n   * Unsubscribes off of channel events\n   *\n   * Use the ref returned from a channel.on() to unsubscribe one\n   * handler, or pass nothing for the ref to unsubscribe all\n   * handlers for the given event.\n   *\n   * @example\n   * // Unsubscribe the do_stuff handler\n   * const ref1 = channel.on(\"event\", do_stuff)\n   * channel.off(\"event\", ref1)\n   *\n   * // Unsubscribe all handlers from event\n   * channel.off(\"event\")\n   *\n   * @param {string} event\n   * @param {integer} ref\n   */\n  off(event, ref){\n    this.bindings = this.bindings.filter((bind) => {\n      return !(bind.event === event && (typeof ref === \"undefined\" || ref === bind.ref))\n    })\n  }\n\n  /**\n   * @private\n   */\n  canPush(){ return this.socket.isConnected() && this.isJoined() }\n\n  /**\n   * Sends a message `event` to phoenix with the payload `payload`.\n   * Phoenix receives this in the `handle_in(event, payload, socket)`\n   * function. if phoenix replies or it times out (default 10000ms),\n   * then optionally the reply can be received.\n   *\n   * @example\n   * channel.push(\"event\")\n   *   .receive(\"ok\", payload => console.log(\"phoenix replied:\", payload))\n   *   .receive(\"error\", err => console.log(\"phoenix errored\", err))\n   *   .receive(\"timeout\", () => console.log(\"timed out pushing\"))\n   * @param {string} event\n   * @param {Object} payload\n   * @param {number} [timeout]\n   * @returns {Push}\n   */\n  push(event, payload, timeout = this.timeout){\n    payload = payload || {}\n    if(!this.joinedOnce){\n      throw new Error(`tried to push '${event}' to '${this.topic}' before joining. Use channel.join() before pushing events`)\n    }\n    let pushEvent = new Push(this, event, function (){ return payload }, timeout)\n    if(this.canPush()){\n      pushEvent.send()\n    } else {\n      pushEvent.startTimeout()\n      this.pushBuffer.push(pushEvent)\n    }\n\n    return pushEvent\n  }\n\n  /** Leaves the channel\n   *\n   * Unsubscribes from server events, and\n   * instructs channel to terminate on server\n   *\n   * Triggers onClose() hooks\n   *\n   * To receive leave acknowledgements, use the `receive`\n   * hook to bind to the server ack, ie:\n   *\n   * @example\n   * channel.leave().receive(\"ok\", () => alert(\"left!\") )\n   *\n   * @param {integer} timeout\n   * @returns {Push}\n   */\n  leave(timeout = this.timeout){\n    this.rejoinTimer.reset()\n    this.joinPush.cancelTimeout()\n\n    this.state = CHANNEL_STATES.leaving\n    let onClose = () => {\n      if(this.socket.hasLogger()) this.socket.log(\"channel\", `leave ${this.topic}`)\n      this.trigger(CHANNEL_EVENTS.close, \"leave\")\n    }\n    let leavePush = new Push(this, CHANNEL_EVENTS.leave, closure({}), timeout)\n    leavePush.receive(\"ok\", () => onClose())\n      .receive(\"timeout\", () => onClose())\n    leavePush.send()\n    if(!this.canPush()){ leavePush.trigger(\"ok\", {}) }\n\n    return leavePush\n  }\n\n  /**\n   * Overridable message hook\n   *\n   * Receives all events for specialized message handling\n   * before dispatching to the channel callbacks.\n   *\n   * Must return the payload, modified or unmodified\n   * @param {string} event\n   * @param {Object} payload\n   * @param {integer} ref\n   * @returns {Object}\n   */\n  onMessage(_event, payload, _ref){ return payload }\n\n  /**\n   * @private\n   */\n  isMember(topic, event, payload, joinRef){\n    if(this.topic !== topic){ return false }\n\n    if(joinRef && joinRef !== this.joinRef()){\n      if(this.socket.hasLogger()) this.socket.log(\"channel\", \"dropping outdated message\", {topic, event, payload, joinRef})\n      return false\n    } else {\n      return true\n    }\n  }\n\n  /**\n   * @private\n   */\n  joinRef(){ return this.joinPush.ref }\n\n  /**\n   * @private\n   */\n  rejoin(timeout = this.timeout){\n    if(this.isLeaving()){ return }\n    this.socket.leaveOpenTopic(this.topic)\n    this.state = CHANNEL_STATES.joining\n    this.joinPush.resend(timeout)\n  }\n\n  /**\n   * @private\n   */\n  trigger(event, payload, ref, joinRef){\n    let handledPayload = this.onMessage(event, payload, ref, joinRef)\n    if(payload && !handledPayload){ throw new Error(\"channel onMessage callbacks must return the payload, modified or unmodified\") }\n\n    let eventBindings = this.bindings.filter(bind => bind.event === event)\n\n    for(let i = 0; i < eventBindings.length; i++){\n      let bind = eventBindings[i]\n      bind.callback(handledPayload, ref, joinRef || this.joinRef())\n    }\n  }\n\n  /**\n   * @private\n   */\n  replyEventName(ref){ return `chan_reply_${ref}` }\n\n  /**\n   * @private\n   */\n  isClosed(){ return this.state === CHANNEL_STATES.closed }\n\n  /**\n   * @private\n   */\n  isErrored(){ return this.state === CHANNEL_STATES.errored }\n\n  /**\n   * @private\n   */\n  isJoined(){ return this.state === CHANNEL_STATES.joined }\n\n  /**\n   * @private\n   */\n  isJoining(){ return this.state === CHANNEL_STATES.joining }\n\n  /**\n   * @private\n   */\n  isLeaving(){ return this.state === CHANNEL_STATES.leaving }\n}\n", "import {\n  global,\n  XHR_STATES\n} from \"./constants\"\n\nexport default class Ajax {\n\n  static request(method, endPoint, accept, body, timeout, ontimeout, callback){\n    if(global.XDomainRequest){\n      let req = new global.XDomainRequest() // IE8, IE9\n      return this.xdomainRequest(req, method, endPoint, body, timeout, ontimeout, callback)\n    } else {\n      let req = new global.XMLHttpRequest() // IE7+, Firefox, Chrome, Opera, Safari\n      return this.xhrRequest(req, method, endPoint, accept, body, timeout, ontimeout, callback)\n    }\n  }\n\n  static xdomainRequest(req, method, endPoint, body, timeout, ontimeout, callback){\n    req.timeout = timeout\n    req.open(method, endPoint)\n    req.onload = () => {\n      let response = this.parseJSON(req.responseText)\n      callback && callback(response)\n    }\n    if(ontimeout){ req.ontimeout = ontimeout }\n\n    // Work around bug in IE9 that requires an attached onprogress handler\n    req.onprogress = () => { }\n\n    req.send(body)\n    return req\n  }\n\n  static xhrRequest(req, method, endPoint, accept, body, timeout, ontimeout, callback){\n    req.open(method, endPoint, true)\n    req.timeout = timeout\n    req.setRequestHeader(\"Content-Type\", accept)\n    req.onerror = () => callback && callback(null)\n    req.onreadystatechange = () => {\n      if(req.readyState === XHR_STATES.complete && callback){\n        let response = this.parseJSON(req.responseText)\n        callback(response)\n      }\n    }\n    if(ontimeout){ req.ontimeout = ontimeout }\n\n    req.send(body)\n    return req\n  }\n\n  static parseJSON(resp){\n    if(!resp || resp === \"\"){ return null }\n\n    try {\n      return JSON.parse(resp)\n    } catch (e){\n      console && console.log(\"failed to parse JSON response\", resp)\n      return null\n    }\n  }\n\n  static serialize(obj, parentKey){\n    let queryStr = []\n    for(var key in obj){\n      if(!Object.prototype.hasOwnProperty.call(obj, key)){ continue }\n      let paramKey = parentKey ? `${parentKey}[${key}]` : key\n      let paramVal = obj[key]\n      if(typeof paramVal === \"object\"){\n        queryStr.push(this.serialize(paramVal, paramKey))\n      } else {\n        queryStr.push(encodeURIComponent(paramKey) + \"=\" + encodeURIComponent(paramVal))\n      }\n    }\n    return queryStr.join(\"&\")\n  }\n\n  static appendParams(url, params){\n    if(Object.keys(params).length === 0){ return url }\n\n    let prefix = url.match(/\\?/) ? \"&\" : \"?\"\n    return `${url}${prefix}${this.serialize(params)}`\n  }\n}\n", "import {\n  SOCKET_STATES,\n  TRANSPORTS\n} from \"./constants\"\n\nimport Ajax from \"./ajax\"\n\nlet arrayBufferToBase64 = (buffer) => {\n  let binary = \"\"\n  let bytes = new Uint8Array(buffer)\n  let len = bytes.byteLength\n  for(let i = 0; i < len; i++){ binary += String.fromCharCode(bytes[i]) }\n  return btoa(binary)\n}\n\nexport default class LongPoll {\n\n  constructor(endPoint){\n    this.endPoint = null\n    this.token = null\n    this.skipHeartbeat = true\n    this.reqs = new Set()\n    this.awaitingBatchAck = false\n    this.currentBatch = null\n    this.currentBatchTimer = null\n    this.batchBuffer = []\n    this.onopen = function (){ } // noop\n    this.onerror = function (){ } // noop\n    this.onmessage = function (){ } // noop\n    this.onclose = function (){ } // noop\n    this.pollEndpoint = this.normalizeEndpoint(endPoint)\n    this.readyState = SOCKET_STATES.connecting\n    // we must wait for the caller to finish setting up our callbacks and timeout properties\n    setTimeout(() => this.poll(), 0)\n  }\n\n  normalizeEndpoint(endPoint){\n    return (endPoint\n      .replace(\"ws://\", \"http://\")\n      .replace(\"wss://\", \"https://\")\n      .replace(new RegExp(\"(.*)\\/\" + TRANSPORTS.websocket), \"$1/\" + TRANSPORTS.longpoll))\n  }\n\n  endpointURL(){\n    return Ajax.appendParams(this.pollEndpoint, {token: this.token})\n  }\n\n  closeAndRetry(code, reason, wasClean){\n    this.close(code, reason, wasClean)\n    this.readyState = SOCKET_STATES.connecting\n  }\n\n  ontimeout(){\n    this.onerror(\"timeout\")\n    this.closeAndRetry(1005, \"timeout\", false)\n  }\n\n  isActive(){ return this.readyState === SOCKET_STATES.open || this.readyState === SOCKET_STATES.connecting }\n\n  poll(){\n    this.ajax(\"GET\", \"application/json\", null, () => this.ontimeout(), resp => {\n      if(resp){\n        var {status, token, messages} = resp\n        this.token = token\n      } else {\n        status = 0\n      }\n\n      switch(status){\n        case 200:\n          messages.forEach(msg => {\n            // Tasks are what things like event handlers, setTimeout callbacks,\n            // promise resolves and more are run within.\n            // In modern browsers, there are two different kinds of tasks,\n            // microtasks and macrotasks.\n            // Microtasks are mainly used for Promises, while macrotasks are\n            // used for everything else.\n            // Microtasks always have priority over macrotasks. If the JS engine\n            // is looking for a task to run, it will always try to empty the\n            // microtask queue before attempting to run anything from the\n            // macrotask queue.\n            //\n            // For the WebSocket transport, messages always arrive in their own\n            // event. This means that if any promises are resolved from within,\n            // their callbacks will always finish execution by the time the\n            // next message event handler is run.\n            //\n            // In order to emulate this behaviour, we need to make sure each\n            // onmessage handler is run within its own macrotask.\n            setTimeout(() => this.onmessage({data: msg}), 0)\n          })\n          this.poll()\n          break\n        case 204:\n          this.poll()\n          break\n        case 410:\n          this.readyState = SOCKET_STATES.open\n          this.onopen({})\n          this.poll()\n          break\n        case 403:\n          this.onerror(403)\n          this.close(1008, \"forbidden\", false)\n          break\n        case 0:\n        case 500:\n          this.onerror(500)\n          this.closeAndRetry(1011, \"internal server error\", 500)\n          break\n        default: throw new Error(`unhandled poll status ${status}`)\n      }\n    })\n  }\n\n  // we collect all pushes within the current event loop by\n  // setTimeout 0, which optimizes back-to-back procedural\n  // pushes against an empty buffer\n\n  send(body){\n    if(typeof(body) !== \"string\"){ body = arrayBufferToBase64(body) }\n    if(this.currentBatch){\n      this.currentBatch.push(body)\n    } else if(this.awaitingBatchAck){\n      this.batchBuffer.push(body)\n    } else {\n      this.currentBatch = [body]\n      this.currentBatchTimer = setTimeout(() => {\n        this.batchSend(this.currentBatch)\n        this.currentBatch = null\n      }, 0)\n    }\n  }\n\n  batchSend(messages){\n    this.awaitingBatchAck = true\n    this.ajax(\"POST\", \"application/x-ndjson\", messages.join(\"\\n\"), () => this.onerror(\"timeout\"), resp => {\n      this.awaitingBatchAck = false\n      if(!resp || resp.status !== 200){\n        this.onerror(resp && resp.status)\n        this.closeAndRetry(1011, \"internal server error\", false)\n      } else if(this.batchBuffer.length > 0){\n        this.batchSend(this.batchBuffer)\n        this.batchBuffer = []\n      }\n    })\n  }\n\n  close(code, reason, wasClean){\n    for(let req of this.reqs){ req.abort() }\n    this.readyState = SOCKET_STATES.closed\n    let opts = Object.assign({code: 1000, reason: undefined, wasClean: true}, {code, reason, wasClean})\n    this.batchBuffer = []\n    clearTimeout(this.currentBatchTimer)\n    this.currentBatchTimer = null\n    if(typeof(CloseEvent) !== \"undefined\"){\n      this.onclose(new CloseEvent(\"close\", opts))\n    } else {\n      this.onclose(opts)\n    }\n  }\n\n  ajax(method, contentType, body, onCallerTimeout, callback){\n    let req\n    let ontimeout = () => {\n      this.reqs.delete(req)\n      onCallerTimeout()\n    }\n    req = Ajax.request(method, this.endpointURL(), contentType, body, this.timeout, ontimeout, resp => {\n      this.reqs.delete(req)\n      if(this.isActive()){ callback(resp) }\n    })\n    this.reqs.add(req)\n  }\n}\n", "/**\n * Initializes the Presence\n * @param {Channel} channel - The Channel\n * @param {Object} opts - The options,\n *        for example `{events: {state: \"state\", diff: \"diff\"}}`\n */\nexport default class Presence {\n\n  constructor(channel, opts = {}){\n    let events = opts.events || {state: \"presence_state\", diff: \"presence_diff\"}\n    this.state = {}\n    this.pendingDiffs = []\n    this.channel = channel\n    this.joinRef = null\n    this.caller = {\n      onJoin: function (){ },\n      onLeave: function (){ },\n      onSync: function (){ }\n    }\n\n    this.channel.on(events.state, newState => {\n      let {onJoin, onLeave, onSync} = this.caller\n\n      this.joinRef = this.channel.joinRef()\n      this.state = Presence.syncState(this.state, newState, onJoin, onLeave)\n\n      this.pendingDiffs.forEach(diff => {\n        this.state = Presence.syncDiff(this.state, diff, onJoin, onLeave)\n      })\n      this.pendingDiffs = []\n      onSync()\n    })\n\n    this.channel.on(events.diff, diff => {\n      let {onJoin, onLeave, onSync} = this.caller\n\n      if(this.inPendingSyncState()){\n        this.pendingDiffs.push(diff)\n      } else {\n        this.state = Presence.syncDiff(this.state, diff, onJoin, onLeave)\n        onSync()\n      }\n    })\n  }\n\n  onJoin(callback){ this.caller.onJoin = callback }\n\n  onLeave(callback){ this.caller.onLeave = callback }\n\n  onSync(callback){ this.caller.onSync = callback }\n\n  list(by){ return Presence.list(this.state, by) }\n\n  inPendingSyncState(){\n    return !this.joinRef || (this.joinRef !== this.channel.joinRef())\n  }\n\n  // lower-level public static API\n\n  /**\n   * Used to sync the list of presences on the server\n   * with the client's state. An optional `onJoin` and `onLeave` callback can\n   * be provided to react to changes in the client's local presences across\n   * disconnects and reconnects with the server.\n   *\n   * @returns {Presence}\n   */\n  static syncState(currentState, newState, onJoin, onLeave){\n    let state = this.clone(currentState)\n    let joins = {}\n    let leaves = {}\n\n    this.map(state, (key, presence) => {\n      if(!newState[key]){\n        leaves[key] = presence\n      }\n    })\n    this.map(newState, (key, newPresence) => {\n      let currentPresence = state[key]\n      if(currentPresence){\n        let newRefs = newPresence.metas.map(m => m.phx_ref)\n        let curRefs = currentPresence.metas.map(m => m.phx_ref)\n        let joinedMetas = newPresence.metas.filter(m => curRefs.indexOf(m.phx_ref) < 0)\n        let leftMetas = currentPresence.metas.filter(m => newRefs.indexOf(m.phx_ref) < 0)\n        if(joinedMetas.length > 0){\n          joins[key] = newPresence\n          joins[key].metas = joinedMetas\n        }\n        if(leftMetas.length > 0){\n          leaves[key] = this.clone(currentPresence)\n          leaves[key].metas = leftMetas\n        }\n      } else {\n        joins[key] = newPresence\n      }\n    })\n    return this.syncDiff(state, {joins: joins, leaves: leaves}, onJoin, onLeave)\n  }\n\n  /**\n   *\n   * Used to sync a diff of presence join and leave\n   * events from the server, as they happen. Like `syncState`, `syncDiff`\n   * accepts optional `onJoin` and `onLeave` callbacks to react to a user\n   * joining or leaving from a device.\n   *\n   * @returns {Presence}\n   */\n  static syncDiff(state, diff, onJoin, onLeave){\n    let {joins, leaves} = this.clone(diff)\n    if(!onJoin){ onJoin = function (){ } }\n    if(!onLeave){ onLeave = function (){ } }\n\n    this.map(joins, (key, newPresence) => {\n      let currentPresence = state[key]\n      state[key] = this.clone(newPresence)\n      if(currentPresence){\n        let joinedRefs = state[key].metas.map(m => m.phx_ref)\n        let curMetas = currentPresence.metas.filter(m => joinedRefs.indexOf(m.phx_ref) < 0)\n        state[key].metas.unshift(...curMetas)\n      }\n      onJoin(key, currentPresence, newPresence)\n    })\n    this.map(leaves, (key, leftPresence) => {\n      let currentPresence = state[key]\n      if(!currentPresence){ return }\n      let refsToRemove = leftPresence.metas.map(m => m.phx_ref)\n      currentPresence.metas = currentPresence.metas.filter(p => {\n        return refsToRemove.indexOf(p.phx_ref) < 0\n      })\n      onLeave(key, currentPresence, leftPresence)\n      if(currentPresence.metas.length === 0){\n        delete state[key]\n      }\n    })\n    return state\n  }\n\n  /**\n   * Returns the array of presences, with selected metadata.\n   *\n   * @param {Object} presences\n   * @param {Function} chooser\n   *\n   * @returns {Presence}\n   */\n  static list(presences, chooser){\n    if(!chooser){ chooser = function (key, pres){ return pres } }\n\n    return this.map(presences, (key, presence) => {\n      return chooser(key, presence)\n    })\n  }\n\n  // private\n\n  static map(obj, func){\n    return Object.getOwnPropertyNames(obj).map(key => func(key, obj[key]))\n  }\n\n  static clone(obj){ return JSON.parse(JSON.stringify(obj)) }\n}\n", "/* The default serializer for encoding and decoding messages */\nimport {\n  CHANNEL_EVENTS\n} from \"./constants\"\n\nexport default {\n  HEADER_LENGTH: 1,\n  META_LENGTH: 4,\n  KINDS: {push: 0, reply: 1, broadcast: 2},\n\n  encode(msg, callback){\n    if(msg.payload.constructor === ArrayBuffer){\n      return callback(this.binaryEncode(msg))\n    } else {\n      let payload = [msg.join_ref, msg.ref, msg.topic, msg.event, msg.payload]\n      return callback(JSON.stringify(payload))\n    }\n  },\n\n  decode(rawPayload, callback){\n    if(rawPayload.constructor === ArrayBuffer){\n      return callback(this.binaryDecode(rawPayload))\n    } else {\n      let [join_ref, ref, topic, event, payload] = JSON.parse(rawPayload)\n      return callback({join_ref, ref, topic, event, payload})\n    }\n  },\n\n  // private\n\n  binaryEncode(message){\n    let {join_ref, ref, event, topic, payload} = message\n    let metaLength = this.META_LENGTH + join_ref.length + ref.length + topic.length + event.length\n    let header = new ArrayBuffer(this.HEADER_LENGTH + metaLength)\n    let view = new DataView(header)\n    let offset = 0\n\n    view.setUint8(offset++, this.KINDS.push) // kind\n    view.setUint8(offset++, join_ref.length)\n    view.setUint8(offset++, ref.length)\n    view.setUint8(offset++, topic.length)\n    view.setUint8(offset++, event.length)\n    Array.from(join_ref, char => view.setUint8(offset++, char.charCodeAt(0)))\n    Array.from(ref, char => view.setUint8(offset++, char.charCodeAt(0)))\n    Array.from(topic, char => view.setUint8(offset++, char.charCodeAt(0)))\n    Array.from(event, char => view.setUint8(offset++, char.charCodeAt(0)))\n\n    var combined = new Uint8Array(header.byteLength + payload.byteLength)\n    combined.set(new Uint8Array(header), 0)\n    combined.set(new Uint8Array(payload), header.byteLength)\n\n    return combined.buffer\n  },\n\n  binaryDecode(buffer){\n    let view = new DataView(buffer)\n    let kind = view.getUint8(0)\n    let decoder = new TextDecoder()\n    switch(kind){\n      case this.KINDS.push: return this.decodePush(buffer, view, decoder)\n      case this.KINDS.reply: return this.decodeReply(buffer, view, decoder)\n      case this.KINDS.broadcast: return this.decodeBroadcast(buffer, view, decoder)\n    }\n  },\n\n  decodePush(buffer, view, decoder){\n    let joinRefSize = view.getUint8(1)\n    let topicSize = view.getUint8(2)\n    let eventSize = view.getUint8(3)\n    let offset = this.HEADER_LENGTH + this.META_LENGTH - 1 // pushes have no ref\n    let joinRef = decoder.decode(buffer.slice(offset, offset + joinRefSize))\n    offset = offset + joinRefSize\n    let topic = decoder.decode(buffer.slice(offset, offset + topicSize))\n    offset = offset + topicSize\n    let event = decoder.decode(buffer.slice(offset, offset + eventSize))\n    offset = offset + eventSize\n    let data = buffer.slice(offset, buffer.byteLength)\n    return {join_ref: joinRef, ref: null, topic: topic, event: event, payload: data}\n  },\n\n  decodeReply(buffer, view, decoder){\n    let joinRefSize = view.getUint8(1)\n    let refSize = view.getUint8(2)\n    let topicSize = view.getUint8(3)\n    let eventSize = view.getUint8(4)\n    let offset = this.HEADER_LENGTH + this.META_LENGTH\n    let joinRef = decoder.decode(buffer.slice(offset, offset + joinRefSize))\n    offset = offset + joinRefSize\n    let ref = decoder.decode(buffer.slice(offset, offset + refSize))\n    offset = offset + refSize\n    let topic = decoder.decode(buffer.slice(offset, offset + topicSize))\n    offset = offset + topicSize\n    let event = decoder.decode(buffer.slice(offset, offset + eventSize))\n    offset = offset + eventSize\n    let data = buffer.slice(offset, buffer.byteLength)\n    let payload = {status: event, response: data}\n    return {join_ref: joinRef, ref: ref, topic: topic, event: CHANNEL_EVENTS.reply, payload: payload}\n  },\n\n  decodeBroadcast(buffer, view, decoder){\n    let topicSize = view.getUint8(1)\n    let eventSize = view.getUint8(2)\n    let offset = this.HEADER_LENGTH + 2\n    let topic = decoder.decode(buffer.slice(offset, offset + topicSize))\n    offset = offset + topicSize\n    let event = decoder.decode(buffer.slice(offset, offset + eventSize))\n    offset = offset + eventSize\n    let data = buffer.slice(offset, buffer.byteLength)\n\n    return {join_ref: null, ref: null, topic: topic, event: event, payload: data}\n  }\n}\n", "import {\n  global,\n  phxWindow,\n  CHANNEL_EVENTS,\n  DEFAULT_TIMEOUT,\n  DEFAULT_VSN,\n  SOCKET_STATES,\n  TRANSPORTS,\n  WS_CLOSE_NORMAL\n} from \"./constants\"\n\nimport {\n  closure\n} from \"./utils\"\n\nimport Ajax from \"./ajax\"\nimport Channel from \"./channel\"\nimport LongPoll from \"./longpoll\"\nimport Serializer from \"./serializer\"\nimport Timer from \"./timer\"\n\n/** Initializes the Socket *\n *\n * For IE8 support use an ES5-shim (https://github.com/es-shims/es5-shim)\n *\n * @param {string} endPoint - The string WebSocket endpoint, ie, `\"ws://example.com/socket\"`,\n *                                               `\"wss://example.com\"`\n *                                               `\"/socket\"` (inherited host & protocol)\n * @param {Object} [opts] - Optional configuration\n * @param {Function} [opts.transport] - The Websocket Transport, for example WebSocket or Phoenix.LongPoll.\n *\n * Defaults to WebSocket with automatic LongPoll fallback if WebSocket is not defined.\n * To fallback to LongPoll when WebSocket attempts fail, use `longPollFallbackMs: 2500`.\n *\n * @param {Function} [opts.longPollFallbackMs] - The millisecond time to attempt the primary transport\n * before falling back to the LongPoll transport. Disabled by default.\n *\n * @param {Function} [opts.debug] - When true, enables debug logging. Default false.\n *\n * @param {Function} [opts.encode] - The function to encode outgoing messages.\n *\n * Defaults to JSON encoder.\n *\n * @param {Function} [opts.decode] - The function to decode incoming messages.\n *\n * Defaults to JSON:\n *\n * ```javascript\n * (payload, callback) => callback(JSON.parse(payload))\n * ```\n *\n * @param {number} [opts.timeout] - The default timeout in milliseconds to trigger push timeouts.\n *\n * Defaults `DEFAULT_TIMEOUT`\n * @param {number} [opts.heartbeatIntervalMs] - The millisec interval to send a heartbeat message\n * @param {number} [opts.reconnectAfterMs] - The optional function that returns the millisec\n * socket reconnect interval.\n *\n * Defaults to stepped backoff of:\n *\n * ```javascript\n * function(tries){\n *   return [10, 50, 100, 150, 200, 250, 500, 1000, 2000][tries - 1] || 5000\n * }\n * ````\n *\n * @param {number} [opts.rejoinAfterMs] - The optional function that returns the millisec\n * rejoin interval for individual channels.\n *\n * ```javascript\n * function(tries){\n *   return [1000, 2000, 5000][tries - 1] || 10000\n * }\n * ````\n *\n * @param {Function} [opts.logger] - The optional function for specialized logging, ie:\n *\n * ```javascript\n * function(kind, msg, data) {\n *   console.log(`${kind}: ${msg}`, data)\n * }\n * ```\n *\n * @param {number} [opts.longpollerTimeout] - The maximum timeout of a long poll AJAX request.\n *\n * Defaults to 20s (double the server long poll timer).\n *\n * @param {(Object|function)} [opts.params] - The optional params to pass when connecting\n * @param {string} [opts.binaryType] - The binary type to use for binary WebSocket frames.\n *\n * Defaults to \"arraybuffer\"\n *\n * @param {vsn} [opts.vsn] - The serializer's protocol version to send on connect.\n *\n * Defaults to DEFAULT_VSN.\n *\n * @param {Object} [opts.sessionStorage] - An optional Storage compatible object\n * Phoenix uses sessionStorage for longpoll fallback history. Overriding the store is\n * useful when Phoenix won't have access to `sessionStorage`. For example, This could\n * happen if a site loads a cross-domain channel in an iframe. Example usage:\n *\n *     class InMemoryStorage {\n *       constructor() { this.storage = {} }\n *       getItem(keyName) { return this.storage[keyName] || null }\n *       removeItem(keyName) { delete this.storage[keyName] }\n *       setItem(keyName, keyValue) { this.storage[keyName] = keyValue }\n *     }\n *\n*/\nexport default class Socket {\n  constructor(endPoint, opts = {}){\n    this.stateChangeCallbacks = {open: [], close: [], error: [], message: []}\n    this.channels = []\n    this.sendBuffer = []\n    this.ref = 0\n    this.timeout = opts.timeout || DEFAULT_TIMEOUT\n    this.transport = opts.transport || global.WebSocket || LongPoll\n    this.primaryPassedHealthCheck = false\n    this.longPollFallbackMs = opts.longPollFallbackMs\n    this.fallbackTimer = null\n    this.sessionStore = opts.sessionStorage || (global && global.sessionStorage)\n    this.establishedConnections = 0\n    this.defaultEncoder = Serializer.encode.bind(Serializer)\n    this.defaultDecoder = Serializer.decode.bind(Serializer)\n    this.closeWasClean = false\n    this.binaryType = opts.binaryType || \"arraybuffer\"\n    this.connectClock = 1\n    if(this.transport !== LongPoll){\n      this.encode = opts.encode || this.defaultEncoder\n      this.decode = opts.decode || this.defaultDecoder\n    } else {\n      this.encode = this.defaultEncoder\n      this.decode = this.defaultDecoder\n    }\n    let awaitingConnectionOnPageShow = null\n    if(phxWindow && phxWindow.addEventListener){\n      phxWindow.addEventListener(\"pagehide\", _e => {\n        if(this.conn){\n          this.disconnect()\n          awaitingConnectionOnPageShow = this.connectClock\n        }\n      })\n      phxWindow.addEventListener(\"pageshow\", _e => {\n        if(awaitingConnectionOnPageShow === this.connectClock){\n          awaitingConnectionOnPageShow = null\n          this.connect()\n        }\n      })\n    }\n    this.heartbeatIntervalMs = opts.heartbeatIntervalMs || 30000\n    this.rejoinAfterMs = (tries) => {\n      if(opts.rejoinAfterMs){\n        return opts.rejoinAfterMs(tries)\n      } else {\n        return [1000, 2000, 5000][tries - 1] || 10000\n      }\n    }\n    this.reconnectAfterMs = (tries) => {\n      if(opts.reconnectAfterMs){\n        return opts.reconnectAfterMs(tries)\n      } else {\n        return [10, 50, 100, 150, 200, 250, 500, 1000, 2000][tries - 1] || 5000\n      }\n    }\n    this.logger = opts.logger || null\n    if(!this.logger && opts.debug){\n      this.logger = (kind, msg, data) => { console.log(`${kind}: ${msg}`, data) }\n    }\n    this.longpollerTimeout = opts.longpollerTimeout || 20000\n    this.params = closure(opts.params || {})\n    this.endPoint = `${endPoint}/${TRANSPORTS.websocket}`\n    this.vsn = opts.vsn || DEFAULT_VSN\n    this.heartbeatTimeoutTimer = null\n    this.heartbeatTimer = null\n    this.pendingHeartbeatRef = null\n    this.reconnectTimer = new Timer(() => {\n      this.teardown(() => this.connect())\n    }, this.reconnectAfterMs)\n  }\n\n  /**\n   * Returns the LongPoll transport reference\n   */\n  getLongPollTransport(){ return LongPoll }\n\n  /**\n   * Disconnects and replaces the active transport\n   *\n   * @param {Function} newTransport - The new transport class to instantiate\n   *\n   */\n  replaceTransport(newTransport){\n    this.connectClock++\n    this.closeWasClean = true\n    clearTimeout(this.fallbackTimer)\n    this.reconnectTimer.reset()\n    if(this.conn){\n      this.conn.close()\n      this.conn = null\n    }\n    this.transport = newTransport\n  }\n\n  /**\n   * Returns the socket protocol\n   *\n   * @returns {string}\n   */\n  protocol(){ return location.protocol.match(/^https/) ? \"wss\" : \"ws\" }\n\n  /**\n   * The fully qualified socket url\n   *\n   * @returns {string}\n   */\n  endPointURL(){\n    let uri = Ajax.appendParams(\n      Ajax.appendParams(this.endPoint, this.params()), {vsn: this.vsn})\n    if(uri.charAt(0) !== \"/\"){ return uri }\n    if(uri.charAt(1) === \"/\"){ return `${this.protocol()}:${uri}` }\n\n    return `${this.protocol()}://${location.host}${uri}`\n  }\n\n  /**\n   * Disconnects the socket\n   *\n   * See https://developer.mozilla.org/en-US/docs/Web/API/CloseEvent#Status_codes for valid status codes.\n   *\n   * @param {Function} callback - Optional callback which is called after socket is disconnected.\n   * @param {integer} code - A status code for disconnection (Optional).\n   * @param {string} reason - A textual description of the reason to disconnect. (Optional)\n   */\n  disconnect(callback, code, reason){\n    this.connectClock++\n    this.closeWasClean = true\n    clearTimeout(this.fallbackTimer)\n    this.reconnectTimer.reset()\n    this.teardown(callback, code, reason)\n  }\n\n  /**\n   *\n   * @param {Object} params - The params to send when connecting, for example `{user_id: userToken}`\n   *\n   * Passing params to connect is deprecated; pass them in the Socket constructor instead:\n   * `new Socket(\"/socket\", {params: {user_id: userToken}})`.\n   */\n  connect(params){\n    if(params){\n      console && console.log(\"passing params to connect is deprecated. Instead pass :params to the Socket constructor\")\n      this.params = closure(params)\n    }\n    if(this.conn){ return }\n    if(this.longPollFallbackMs && this.transport !== LongPoll){\n      this.connectWithFallback(LongPoll, this.longPollFallbackMs)\n    } else {\n      this.transportConnect()\n    }\n  }\n\n  /**\n   * Logs the message. Override `this.logger` for specialized logging. noops by default\n   * @param {string} kind\n   * @param {string} msg\n   * @param {Object} data\n   */\n  log(kind, msg, data){ this.logger && this.logger(kind, msg, data) }\n\n  /**\n   * Returns true if a logger has been set on this socket.\n   */\n  hasLogger(){ return this.logger !== null }\n\n  /**\n   * Registers callbacks for connection open events\n   *\n   * @example socket.onOpen(function(){ console.info(\"the socket was opened\") })\n   *\n   * @param {Function} callback\n   */\n  onOpen(callback){\n    let ref = this.makeRef()\n    this.stateChangeCallbacks.open.push([ref, callback])\n    return ref\n  }\n\n  /**\n   * Registers callbacks for connection close events\n   * @param {Function} callback\n   */\n  onClose(callback){\n    let ref = this.makeRef()\n    this.stateChangeCallbacks.close.push([ref, callback])\n    return ref\n  }\n\n  /**\n   * Registers callbacks for connection error events\n   *\n   * @example socket.onError(function(error){ alert(\"An error occurred\") })\n   *\n   * @param {Function} callback\n   */\n  onError(callback){\n    let ref = this.makeRef()\n    this.stateChangeCallbacks.error.push([ref, callback])\n    return ref\n  }\n\n  /**\n   * Registers callbacks for connection message events\n   * @param {Function} callback\n   */\n  onMessage(callback){\n    let ref = this.makeRef()\n    this.stateChangeCallbacks.message.push([ref, callback])\n    return ref\n  }\n\n  /**\n   * Pings the server and invokes the callback with the RTT in milliseconds\n   * @param {Function} callback\n   *\n   * Returns true if the ping was pushed or false if unable to be pushed.\n   */\n  ping(callback){\n    if(!this.isConnected()){ return false }\n    let ref = this.makeRef()\n    let startTime = Date.now()\n    this.push({topic: \"phoenix\", event: \"heartbeat\", payload: {}, ref: ref})\n    let onMsgRef = this.onMessage(msg => {\n      if(msg.ref === ref){\n        this.off([onMsgRef])\n        callback(Date.now() - startTime)\n      }\n    })\n    return true\n  }\n\n  /**\n   * @private\n   */\n\n  transportConnect(){\n    this.connectClock++\n    this.closeWasClean = false\n    this.conn = new this.transport(this.endPointURL())\n    this.conn.binaryType = this.binaryType\n    this.conn.timeout = this.longpollerTimeout\n    this.conn.onopen = () => this.onConnOpen()\n    this.conn.onerror = error => this.onConnError(error)\n    this.conn.onmessage = event => this.onConnMessage(event)\n    this.conn.onclose = event => this.onConnClose(event)\n  }\n\n  getSession(key){ return this.sessionStore && this.sessionStore.getItem(key) }\n\n  storeSession(key, val){ this.sessionStore && this.sessionStore.setItem(key, val) }\n\n  connectWithFallback(fallbackTransport, fallbackThreshold = 2500){\n    clearTimeout(this.fallbackTimer)\n    let established = false\n    let primaryTransport = true\n    let openRef, errorRef\n    let fallback = (reason) => {\n      this.log(\"transport\", `falling back to ${fallbackTransport.name}...`, reason)\n      this.off([openRef, errorRef])\n      primaryTransport = false\n      this.replaceTransport(fallbackTransport)\n      this.transportConnect()\n    }\n    if(this.getSession(`phx:fallback:${fallbackTransport.name}`)){ return fallback(\"memorized\") }\n\n    this.fallbackTimer = setTimeout(fallback, fallbackThreshold)\n\n    errorRef = this.onError(reason => {\n      this.log(\"transport\", \"error\", reason)\n      if(primaryTransport && !established){\n        clearTimeout(this.fallbackTimer)\n        fallback(reason)\n      }\n    })\n    this.onOpen(() => {\n      established = true\n      if(!primaryTransport){\n        // only memorize LP if we never connected to primary\n        if(!this.primaryPassedHealthCheck){ this.storeSession(`phx:fallback:${fallbackTransport.name}`, \"true\") }\n        return this.log(\"transport\", `established ${fallbackTransport.name} fallback`)\n      }\n      // if we've established primary, give the fallback a new period to attempt ping\n      clearTimeout(this.fallbackTimer)\n      this.fallbackTimer = setTimeout(fallback, fallbackThreshold)\n      this.ping(rtt => {\n        this.log(\"transport\", \"connected to primary after\", rtt)\n        this.primaryPassedHealthCheck = true\n        clearTimeout(this.fallbackTimer)\n      })\n    })\n    this.transportConnect()\n  }\n\n  clearHeartbeats(){\n    clearTimeout(this.heartbeatTimer)\n    clearTimeout(this.heartbeatTimeoutTimer)\n  }\n\n  onConnOpen(){\n    if(this.hasLogger()) this.log(\"transport\", `${this.transport.name} connected to ${this.endPointURL()}`)\n    this.closeWasClean = false\n    this.establishedConnections++\n    this.flushSendBuffer()\n    this.reconnectTimer.reset()\n    this.resetHeartbeat()\n    this.stateChangeCallbacks.open.forEach(([, callback]) => callback())\n  }\n\n  /**\n   * @private\n   */\n\n  heartbeatTimeout(){\n    if(this.pendingHeartbeatRef){\n      this.pendingHeartbeatRef = null\n      if(this.hasLogger()){ this.log(\"transport\", \"heartbeat timeout. Attempting to re-establish connection\") }\n      this.triggerChanError()\n      this.closeWasClean = false\n      this.teardown(() => this.reconnectTimer.scheduleTimeout(), WS_CLOSE_NORMAL, \"heartbeat timeout\")\n    }\n  }\n\n  resetHeartbeat(){\n    if(this.conn && this.conn.skipHeartbeat){ return }\n    this.pendingHeartbeatRef = null\n    this.clearHeartbeats()\n    this.heartbeatTimer = setTimeout(() => this.sendHeartbeat(), this.heartbeatIntervalMs)\n  }\n\n  teardown(callback, code, reason){\n    if(!this.conn){\n      return callback && callback()\n    }\n\n    this.waitForBufferDone(() => {\n      if(this.conn){\n        if(code){ this.conn.close(code, reason || \"\") } else { this.conn.close() }\n      }\n\n      this.waitForSocketClosed(() => {\n        if(this.conn){\n          this.conn.onopen = function (){ } // noop\n          this.conn.onerror = function (){ } // noop\n          this.conn.onmessage = function (){ } // noop\n          this.conn.onclose = function (){ } // noop\n          this.conn = null\n        }\n\n        callback && callback()\n      })\n    })\n  }\n\n  waitForBufferDone(callback, tries = 1){\n    if(tries === 5 || !this.conn || !this.conn.bufferedAmount){\n      callback()\n      return\n    }\n\n    setTimeout(() => {\n      this.waitForBufferDone(callback, tries + 1)\n    }, 150 * tries)\n  }\n\n  waitForSocketClosed(callback, tries = 1){\n    if(tries === 5 || !this.conn || this.conn.readyState === SOCKET_STATES.closed){\n      callback()\n      return\n    }\n\n    setTimeout(() => {\n      this.waitForSocketClosed(callback, tries + 1)\n    }, 150 * tries)\n  }\n\n  onConnClose(event){\n    let closeCode = event && event.code\n    if(this.hasLogger()) this.log(\"transport\", \"close\", event)\n    this.triggerChanError()\n    this.clearHeartbeats()\n    if(!this.closeWasClean && closeCode !== 1000){\n      this.reconnectTimer.scheduleTimeout()\n    }\n    this.stateChangeCallbacks.close.forEach(([, callback]) => callback(event))\n  }\n\n  /**\n   * @private\n   */\n  onConnError(error){\n    if(this.hasLogger()) this.log(\"transport\", error)\n    let transportBefore = this.transport\n    let establishedBefore = this.establishedConnections\n    this.stateChangeCallbacks.error.forEach(([, callback]) => {\n      callback(error, transportBefore, establishedBefore)\n    })\n    if(transportBefore === this.transport || establishedBefore > 0){\n      this.triggerChanError()\n    }\n  }\n\n  /**\n   * @private\n   */\n  triggerChanError(){\n    this.channels.forEach(channel => {\n      if(!(channel.isErrored() || channel.isLeaving() || channel.isClosed())){\n        channel.trigger(CHANNEL_EVENTS.error)\n      }\n    })\n  }\n\n  /**\n   * @returns {string}\n   */\n  connectionState(){\n    switch(this.conn && this.conn.readyState){\n      case SOCKET_STATES.connecting: return \"connecting\"\n      case SOCKET_STATES.open: return \"open\"\n      case SOCKET_STATES.closing: return \"closing\"\n      default: return \"closed\"\n    }\n  }\n\n  /**\n   * @returns {boolean}\n   */\n  isConnected(){ return this.connectionState() === \"open\" }\n\n  /**\n   * @private\n   *\n   * @param {Channel}\n   */\n  remove(channel){\n    this.off(channel.stateChangeRefs)\n    this.channels = this.channels.filter(c => c !== channel)\n  }\n\n  /**\n   * Removes `onOpen`, `onClose`, `onError,` and `onMessage` registrations.\n   *\n   * @param {refs} - list of refs returned by calls to\n   *                 `onOpen`, `onClose`, `onError,` and `onMessage`\n   */\n  off(refs){\n    for(let key in this.stateChangeCallbacks){\n      this.stateChangeCallbacks[key] = this.stateChangeCallbacks[key].filter(([ref]) => {\n        return refs.indexOf(ref) === -1\n      })\n    }\n  }\n\n  /**\n   * Initiates a new channel for the given topic\n   *\n   * @param {string} topic\n   * @param {Object} chanParams - Parameters for the channel\n   * @returns {Channel}\n   */\n  channel(topic, chanParams = {}){\n    let chan = new Channel(topic, chanParams, this)\n    this.channels.push(chan)\n    return chan\n  }\n\n  /**\n   * @param {Object} data\n   */\n  push(data){\n    if(this.hasLogger()){\n      let {topic, event, payload, ref, join_ref} = data\n      this.log(\"push\", `${topic} ${event} (${join_ref}, ${ref})`, payload)\n    }\n\n    if(this.isConnected()){\n      this.encode(data, result => this.conn.send(result))\n    } else {\n      this.sendBuffer.push(() => this.encode(data, result => this.conn.send(result)))\n    }\n  }\n\n  /**\n   * Return the next message ref, accounting for overflows\n   * @returns {string}\n   */\n  makeRef(){\n    let newRef = this.ref + 1\n    if(newRef === this.ref){ this.ref = 0 } else { this.ref = newRef }\n\n    return this.ref.toString()\n  }\n\n  sendHeartbeat(){\n    if(this.pendingHeartbeatRef && !this.isConnected()){ return }\n    this.pendingHeartbeatRef = this.makeRef()\n    this.push({topic: \"phoenix\", event: \"heartbeat\", payload: {}, ref: this.pendingHeartbeatRef})\n    this.heartbeatTimeoutTimer = setTimeout(() => this.heartbeatTimeout(), this.heartbeatIntervalMs)\n  }\n\n  flushSendBuffer(){\n    if(this.isConnected() && this.sendBuffer.length > 0){\n      this.sendBuffer.forEach(callback => callback())\n      this.sendBuffer = []\n    }\n  }\n\n  onConnMessage(rawMessage){\n    this.decode(rawMessage.data, msg => {\n      let {topic, event, payload, ref, join_ref} = msg\n      if(ref && ref === this.pendingHeartbeatRef){\n        this.clearHeartbeats()\n        this.pendingHeartbeatRef = null\n        this.heartbeatTimer = setTimeout(() => this.sendHeartbeat(), this.heartbeatIntervalMs)\n      }\n\n      if(this.hasLogger()) this.log(\"receive\", `${payload.status || \"\"} ${topic} ${event} ${ref && \"(\" + ref + \")\" || \"\"}`, payload)\n\n      for(let i = 0; i < this.channels.length; i++){\n        const channel = this.channels[i]\n        if(!channel.isMember(topic, event, payload, join_ref)){ continue }\n        channel.trigger(event, payload, ref, join_ref)\n      }\n\n      for(let i = 0; i < this.stateChangeCallbacks.message.length; i++){\n        let [, callback] = this.stateChangeCallbacks.message[i]\n        callback(msg)\n      }\n    })\n  }\n\n  leaveOpenTopic(topic){\n    let dupChannel = this.channels.find(c => c.topic === topic && (c.isJoined() || c.isJoining()))\n    if(dupChannel){\n      if(this.hasLogger()) this.log(\"transport\", `leaving duplicate topic \"${topic}\"`)\n      dupChannel.leave()\n    }\n  }\n}\n"],
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