Bug: Intermittent browser/base/content/test/tabMediaIndicator/browser_mute_webAudio.js | single tracking bug
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2023-07-12 13:12:36+00:00
Resolved: 2024-07-10 12:03:08+00:00

**Filed by:** nerli [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=422404491&repo=mozilla-central
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/IyiusJwWQ1SENrn8IfHIMw/runs/0/artifacts/public/logs/live_backing.log

---
```
[task 2023-07-12T12:34:46.067Z] 12:34:46     INFO - TEST-START | browser/base/content/test/tabMediaIndicator/browser_mute_webAudio.js
[task 2023-07-12T12:34:46.075Z] 12:34:46     INFO - TEST-INFO | started process screencapture
[task 2023-07-12T12:34:46.196Z] 12:34:46     INFO - TEST-INFO | screencapture: exit 0
[task 2023-07-12T12:34:46.196Z] 12:34:46     INFO - Buffered messages logged at 12:34:46
[task 2023-07-12T12:34:46.196Z] 12:34:46     INFO - Entering test bound setup_test_preference
[task 2023-07-12T12:34:46.197Z] 12:34:46     INFO - Leaving test bound setup_test_preference
[task 2023-07-12T12:34:46.197Z] 12:34:46     INFO - Entering test bound mute_web_audio
[task 2023-07-12T12:34:46.197Z] 12:34:46     INFO - - open new tab -
[task 2023-07-12T12:34:46.197Z] 12:34:46     INFO - Buffered messages finished
[task 2023-07-12T12:34:46.200Z] 12:34:46     INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/tabMediaIndicator/browser_mute_webAudio.js | uncaught exception - NS_ERROR_XPC_BAD_CONVERT_JS: Could not convert JavaScript argument arg 0 [nsIObserverService.addObserver] at construct@chrome://global/content/elements/browser-custom-element.js:1034:24
[task 2023-07-12T12:34:46.200Z] 12:34:46     INFO - connectedCallback@chrome://global/content/elements/browser-custom-element.js:330:12
[task 2023-07-12T12:34:46.200Z] 12:34:46     INFO - _insertBrowser@chrome://browser/content/tabbrowser.js:2326:24
[task 2023-07-12T12:34:46.200Z] 12:34:46     INFO - addTab@chrome://browser/content/tabbrowser.js:2726:16
[task 2023-07-12T12:34:46.200Z] 12:34:46     INFO - addTab@resource://testing-common/BrowserTestUtils.sys.mjs:2659:23
[task 2023-07-12T12:34:46.200Z] 12:34:46     INFO - openNewForegroundTab/promises<@resource://testing-common/BrowserTestUtils.sys.mjs:251:61
[task 2023-07-12T12:34:46.200Z] 12:34:46     INFO - switchTab@resource://testing-common/BrowserTestUtils.sys.mjs:391:7
[task 2023-07-12T12:34:46.200Z] 12:34:46     INFO - openNewForegroundTab@resource://testing-common/BrowserTestUtils.sys.mjs:246:26
[task 2023-07-12T12:34:46.200Z] 12:34:46     INFO - mute_web_audio@chrome://mochitests/content/browser/browser/base/content/test/tabMediaIndicator/browser_mute_webAudio.js:41:36
[task 2023-07-12T12:34:46.200Z] 12:34:46     INFO - handleTask@chrome://mochikit/content/browser-test.js:1131:26
[task 2023-07-12T12:34:46.200Z] 12:34:46     INFO - _runTaskBasedTest@chrome://mochikit/content/browser-test.js:1203:18
[task 2023-07-12T12:34:46.200Z] 12:34:46     INFO - async*Tester_execTest@chrome://mochikit/content/browser-test.js:1345:14
[task 2023-07-12T12:34:46.200Z] 12:34:46     INFO - nextTest/<@chrome://mochikit/content/browser-test.js:1120:14
[task 2023-07-12T12:34:46.200Z] 12:34:46     INFO - SimpleTest.waitForFocus/<@chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:1056:13
[task 2023-07-12T12:34:46.201Z] 12:34:46     INFO - 
[task 2023-07-12T12:34:46.201Z] 12:34:46     INFO - Stack trace:
[task 2023-07-12T12:34:46.201Z] 12:34:46     INFO - chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:simpletestOnerror:2003
[task 2023-07-12T12:34:46.201Z] 12:34:46     INFO - chrome://browser/content/tabbrowser.js:_insertBrowser:2326
[task 2023-07-12T12:34:46.201Z] 12:34:46     INFO - chrome://browser/content/tabbrowser.js:addTab:2726
[task 2023-07-12T12:34:46.201Z] 12:34:46     INFO - resource://testing-common/BrowserTestUtils.sys.mjs:addTab:2659
[task 2023-07-12T12:34:46.201Z] 12:34:46     INFO - resource://testing-common/BrowserTestUtils.sys.mjs:openNewForegroundTab/promises<:251
[task 2023-07-12T12:34:46.201Z] 12:34:46     INFO - resource://testing-common/BrowserTestUtils.sys.mjs:switchTab:391
[task 2023-07-12T12:34:46.201Z] 12:34:46     INFO - resource://testing-common/BrowserTestUtils.sys.mjs:openNewForegroundTab:246
[task 2023-07-12T12:34:46.201Z] 12:34:46     INFO - chrome://mochitests/content/browser/browser/base/content/test/tabMediaIndicator/browser_mute_webAudio.js:mute_web_audio:41
[task 2023-07-12T12:34:46.201Z] 12:34:46     INFO - chrome://mochikit/content/browser-test.js:handleTask:1131
[task 2023-07-12T12:34:46.201Z] 12:34:46     INFO - chrome://mochikit/content/browser-test.js:_runTaskBasedTest:1203
[task 2023-07-12T12:34:46.201Z] 12:34:46     INFO - chrome://mochikit/content/browser-test.js:Tester_execTest:1345
[task 2023-07-12T12:34:46.201Z] 12:34:46     INFO - chrome://mochikit/content/browser-test.js:nextTest/<:1120
[task 2023-07-12T12:34:46.201Z] 12:34:46     INFO - chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:SimpleTest.waitForFocus/<:1056
[task 2023-07-12T12:34:46.202Z] 12:34:46     INFO - GECKO(1356) | JavaScript error: chrome://global/content/elements/browser-custom-element.js, line 1034: NS_ERROR_XPC_BAD_CONVERT_JS: Could not convert JavaScript argument arg 0 [nsIObserverService.addObserver]
[task 2023-07-12T12:34:46.203Z] 12:34:46     INFO - Console message: [JavaScript Error: "NS_ERROR_XPC_BAD_CONVERT_JS: Could not convert JavaScript argument arg 0 [nsIObserverService.addObserver]" {file: "chrome://global/content/elements/browser-custom-element.js" line: 1034}]
[task 2023-07-12T12:34:46.203Z] 12:34:46     INFO - construct@chrome://global/content/elements/browser-custom-element.js:1034:24
[task 2023-07-12T12:34:46.203Z] 12:34:46     INFO - connectedCallback@chrome://global/content/elements/browser-custom-element.js:330:12
[task 2023-07-12T12:34:46.203Z] 12:34:46     INFO - _insertBrowser@chrome://browser/content/tabbrowser.js:2326:24
[task 2023-07-12T12:34:46.203Z] 12:34:46     INFO - addTab@chrome://browser/content/tabbrowser.js:2726:16
[task 2023-07-12T12:34:46.203Z] 12:34:46     INFO - addTab@resource://testing-common/BrowserTestUtils.sys.mjs:2659:23
[task 2023-07-12T12:34:46.203Z] 12:34:46     INFO - openNewForegroundTab/promises<@resource://testing-common/BrowserTestUtils.sys.mjs:251:61
[task 2023-07-12T12:34:46.204Z] 12:34:46     INFO - switchTab@resource://testing-common/BrowserTestUtils.sys.mjs:391:7
[task 2023-07-12T12:34:46.204Z] 12:34:46     INFO - openNewForegroundTab@resource://testing-common/BrowserTestUtils.sys.mjs:246:26
[task 2023-07-12T12:34:46.204Z] 12:34:46     INFO - mute_web_audio@chrome://mochitests/content/browser/browser/base/content/test/tabMediaIndicator/browser_mute_webAudio.js:41:36
[task 2023-07-12T12:34:46.204Z] 12:34:46     INFO - handleTask@chrome://mochikit/content/browser-test.js:1131:26
[task 2023-07-12T12:34:46.204Z] 12:34:46     INFO - _runTaskBasedTest@chrome://mochikit/content/browser-test.js:1203:18
[task 2023-07-12T12:34:46.204Z] 12:34:46     INFO - async*Tester_execTest@chrome://mochikit/content/browser-test.js:1345:14
[task 2023-07-12T12:34:46.204Z] 12:34:46     INFO - nextTest/<@chrome://mochikit/content/browser-test.js:1120:14
[task 2023-07-12T12:34:46.204Z] 12:34:46     INFO - SimpleTest.waitForFocus/<@chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:1056:13
```