From da87d13a753cdb394fe24a00af7e02f0dcc5fa00 Mon Sep 17 00:00:00 2001
From: Roshan Jossy <roshan.jossy@jina.ai>
Date: Mon, 9 May 2022 12:14:36 +0200
Subject: [PATCH] docs(tracking): update external links' source (#711)

---
 docs/_static/source-in-links.js | 22 ++++++++++++++++++++++
 docs/conf.py                    |  1 +
 2 files changed, 23 insertions(+)
 create mode 100644 docs/_static/source-in-links.js

diff --git a/docs/_static/source-in-links.js b/docs/_static/source-in-links.js
new file mode 100644
index 000000000..6c3a733eb
--- /dev/null
+++ b/docs/_static/source-in-links.js
@@ -0,0 +1,22 @@
+function addUTMSourceToLink(href) {
+    try {
+        var url = new URL(href);
+        url.searchParams.set("utm_source", "clip-as-service");
+        return url.href
+    }
+    catch{
+        return href
+    }
+}
+
+function addUTMSourceToLinks() {
+    var anchors = document.getElementsByTagName("a");
+
+    for (var i = 0; i < anchors.length; i++) {
+        anchors[i].href = addUTMSourceToLink(anchors[i].href)
+    }
+}
+
+window.onload = function () {
+    addUTMSourceToLinks()
+}
\ No newline at end of file
diff --git a/docs/conf.py b/docs/conf.py
index 6f895606c..66edadc4d 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -74,6 +74,7 @@
 ]
 html_js_files = [
     'https://cdn.jsdelivr.net/npm/vue@2/dist/vue.min.js',
+    'source-in-links.js',
 ]
 htmlhelp_basename = slug
 html_show_sourcelink = False