Blink 0.12.6 breaks PlotlyJS

[takbal]

Clean install containing only PlotlyJS breaks on the second plot() call:

% julia --startup-file=no --banner=no
julia> versioninfo()
Julia Version 1.8.2
Commit 36034abf260 (2022-09-29 15:21 UTC)
Platform Info:
  OS: Linux (x86_64-linux-gnu)
  CPU: 16 × AMD Ryzen 7 1700 Eight-Core Processor
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-13.0.1 (ORCJIT, znver1)
  Threads: 1 on 16 virtual cores

(@v1.8) pkg> st
Status `~/.julia/environments/v1.8/Project.toml`
  [f0f68f2c] PlotlyJS v0.18.10

julia> using Pkg, PlotlyJS

julia> [ (p.name, p.version) for (_,p) in Pkg.dependencies() if p.name in ["Blink","WebIO","PlotlyJS"] ]
3-element Vector{Tuple{String, VersionNumber}}:
 ("PlotlyJS", v"0.18.10")
 ("Blink", v"0.12.6")
 ("WebIO", v"0.8.20")

julia> plot([1])
[ Info: Listening on: 127.0.0.1:7323, thread id: 1

julia> plot([1])
┌ Error: An error occurred while trying to initialize a Blink window!
│   exception =
│    Javascript error   ReferenceError: webio is not defined
│    Stacktrace:
│     [1] js(o::Blink.Page, js::WebIO.JSString; callback::Bool)
│       @ Blink ~/.julia/packages/Blink/SMxOp/src/rpc/rpc.jl:53
│     [2] js(win::Blink.AtomShell.Window, s::WebIO.JSString; callback::Bool)
│       @ Blink.AtomShell ~/.julia/packages/Blink/SMxOp/src/AtomShell/window.jl:263
│     [3] js(o::Blink.AtomShell.Window, j::Expr; callback::Bool)
│       @ Blink ~/.julia/packages/Blink/SMxOp/src/rpc/rpc.jl:61
│     [4] js
│       @ ~/.julia/packages/Blink/SMxOp/src/rpc/rpc.jl:61 [inlined]
│     [5] initwebio!(w::Blink.AtomShell.Window)
│       @ Blink.AtomShell ~/.julia/packages/Blink/SMxOp/src/AtomShell/webio.jl:17
│     [6] initwindow!(w::Blink.AtomShell.Window, callback_cond::Condition)
│       @ Blink.AtomShell ~/.julia/packages/Blink/SMxOp/src/AtomShell/window.jl:92
│     [7] (::Blink.AtomShell.var"#9#10"{Blink.AtomShell.Window, Condition})()
│       @ Blink.AtomShell ./task.jl:484
└ @ Blink.AtomShell ~/.julia/packages/Blink/SMxOp/src/AtomShell/window.jl:69

julia> 

The issue goes away with downgrading Blink:

(@v1.8) pkg> add [email protected]
    Updating registry at `~/.julia/registries/takbal`
    Updating git-repo `[email protected]:julia-registry.git`
    Updating registry at `~/.julia/registries/General.toml`
   Resolving package versions...
    Updating `~/.julia/environments/v1.8/Project.toml`
⌃ [ad839575] + Blink v0.12.5
    Updating `~/.julia/environments/v1.8/Manifest.toml`
  [9e28174c] + BinDeps v1.0.2
  [d1d4a3ce] - BitFlags v0.1.7
⌃ [ad839575] ↓ Blink v0.12.6 ⇒ v0.12.5
  [944b1d66] - CodecZlib v0.7.1
⌅ [cd3eb016] ↓ HTTP v1.7.4 ⇒ v0.9.17
  [e6f89c97] - LoggingExtras v1.0.0
⌅ [a975b10e] ↓ Mux v1.0.1 ⇒ v0.7.6
  [4d8831e6] - OpenSSL v1.3.3
  [777ac1f9] - SimpleBufferStream v1.1.0
  [3bb67fe8] - TranscodingStreams v0.9.11
  [30578b45] + URIParser v0.4.1
⌃ [104b5d7c] ↓ WebSockets v1.6.0 ⇒ v1.5.9
  [458c3c95] - OpenSSL_jll v1.1.20+0
        Info Packages marked with ⌃ and ⌅ have new versions available, but those with ⌅ are restricted by compatibility constraints from upgrading. To see why use `status --outdated -m`

Then after restart:

% julia --startup-file=no --banner=no
(@v1.8) pkg> st
Status `~/.julia/environments/v1.8/Project.toml`
⌃ [ad839575] Blink v0.12.5
  [f0f68f2c] PlotlyJS v0.18.10
Info Packages marked with ⌃ have new versions available and may be upgradable.

julia> using Pkg, PlotlyJS
[ Info: Precompiling PlotlyJS [f0f68f2c-4968-5e81-91da-67840de0976a]

julia> [ (p.name, p.version) for (_,p) in Pkg.dependencies() if p.name in ["Blink","WebIO","PlotlyJS"] ]
3-element Vector{Tuple{String, VersionNumber}}:
 ("PlotlyJS", v"0.18.10")
 ("Blink", v"0.12.5")
 ("WebIO", v"0.8.20")

julia> plot([1])

julia> plot([1])

julia> plot([1])

julia> plot([1])

julia> plot([1])

julia> 

The issue persists with [email protected] as well and [email protected] is already older, so it appears that Blink introduced the problem.

People already shopping around with this issue in the other packages:

JuliaGizmos/WebIO.jl#505
JuliaPlots/PlotlyJS.jl#460

[pfitzseb]

I can't repro this, unfortunately. Seems likely to be a race condition somewhere in the WebIO initialization code, but it's kinda tricky to debug without a reproducer.

[mzaffalon]

As reported by @takbal, this happens after a couple of plots to me as well on a Windows 10 machine with Julia 1.8.5.

[takbal]

@pfitzseb I can 100% reproduce this on the second plot. Maybe you have a hint what to log or print?

[rasmushenningsson]

Version 0.12.6 fails for me both with PlotlyJS as described above (both on linux and windows), but also when just loading a html file in a Blink Window.
0.12.5 works well.

[rasmushenningsson]

Any news on this?

[rasmushenningsson]

Great, thanks!