tor-browser

commit d537926582997600d22c729d83c7485d6865486d
parent 7183da629743a0d10d016b0b50efcec03b525bb3
Author: Thomas Wisniewski <twisniewski@mozilla.com>
Date:   Mon,  6 Oct 2025 13:56:50 +0000

Bug 1938533 - add a JS webcompat intervention for ChatGPT to fix voice mode; r=webcompat-reviewers,ksenia

Differential Revision: https://phabricator.services.mozilla.com/D267597

Diffstat:
M
browser/extensions/webcompat/data/interventions.json
 | 
18
++++++++++++++++++
A
browser/extensions/webcompat/injections/js/bug1938533-chatgpt.com-fix-voice-mode.js
 | 
33
+++++++++++++++++++++++++++++++++

2 files changed, 51 insertions(+), 0 deletions(-)
diff --git a/browser/extensions/webcompat/data/interventions.json b/browser/extensions/webcompat/data/interventions.json
@@ -5246,6 +5246,24 @@
       }
     ]
   },
+  "1938533": {
+    "label": "chatgpt.com",
+    "bugs": {
+      "1938533": {
+        "issue": "broken-interactive-elements",
+        "matches": ["https://chatgpt.com/*"]
+      }
+    },
+    "interventions": [
+      {
+        "platforms": ["all"],
+        "only_channels": ["nightly"],
+        "content_scripts": {
+          "js": ["bug1938533-chatgpt.com-fix-voice-mode.js"]
+        }
+      }
+    ]
+  },
   "1976402": {
     "label": "dieseldispatch.com",
     "bugs": {
diff --git a/browser/extensions/webcompat/injections/js/bug1938533-chatgpt.com-fix-voice-mode.js b/browser/extensions/webcompat/injections/js/bug1938533-chatgpt.com-fix-voice-mode.js
@@ -0,0 +1,33 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+/**
+ * Bugs 1938533 - ChatGPT voice mode does not always work.
+ *
+ * ChatGPT voice seems to be relying on peer reflexive candidates. It
+ * isn't giving Firefox any STUN/TURN servers in the RTCPeerConnection
+ * config which is a bit unusual. The following works around the issue.
+ */
+
+/* globals exportFunction */
+
+console.info(
+  "RTCPeerConnection is being shimmed for compatibility reasons. See https://bugzilla.mozilla.org/show_bug.cgi?id=1938533 for details."
+);
+
+const win = window.wrappedJSObject;
+const origRTCPeerConnection = win.RTCPeerConnection;
+win.RTCPeerConnection = exportFunction(function (cfg = {}) {
+  const extra = [{ urls: "stun:stun.l.google.com:19302" }];
+  const merged = { ...cfg, iceServers: [...(cfg.iceServers || []), ...extra] };
+  const pc = new origRTCPeerConnection(merged);
+  pc.addEventListener("icecandidateerror", e => console.warn("ICE error", e));
+  pc.addEventListener("iceconnectionstatechange", () =>
+    console.log("iceConnectionState", pc.iceConnectionState)
+  );
+  return pc;
+}, window);
+win.RTCPeerConnection.prototype = origRTCPeerConnection.prototype;