Bug: Intermittent browser/base/content/test/favicons/browser_title_flicker.js | Should have seen the busy attribute -
Status: RESOLVED
Priority: P5
Resolution: DUPLICATE
Created: 2020-07-13 07:42:07+00:00
Resolved: 2022-08-12 20:35:49+00:00

**Filed by:** btara [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer.html#?job_id=309556425&repo=autoland
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/Ls5FLXjmQB-H_SejLw6MGA/runs/0/artifacts/public/logs/live_backing.log

---

```
...
[task 2020-07-13T07:21:28.150Z] 07:21:28     INFO - Entering test bound 
[task 2020-07-13T07:21:28.151Z] 07:21:28     INFO - Console message: [JavaScript Error: "The character encoding of the HTML document was not declared. The document will render with garbled text in some browser configurations if the document contains characters from outside the US-ASCII range. The character encoding of the page must be declared in the document or in the transfer protocol." {file: "http://example.com/browser/browser/base/content/test/favicons/blank.html" line: 0}]
[task 2020-07-13T07:21:28.151Z] 07:21:28     INFO - TEST-PASS | browser/base/content/test/favicons/browser_title_flicker.js | undefined assertion name - 
[task 2020-07-13T07:21:28.151Z] 07:21:28     INFO - TEST-PASS | browser/base/content/test/favicons/browser_title_flicker.js | Should not have marked a pending icon - 
[task 2020-07-13T07:21:28.151Z] 07:21:28     INFO - TEST-PASS | browser/base/content/test/favicons/browser_title_flicker.js | Should have seen the title in the same place. - 
[task 2020-07-13T07:21:28.152Z] 07:21:28     INFO - Buffered messages logged at 07:21:27
[task 2020-07-13T07:21:28.153Z] 07:21:28     INFO - TEST-PASS | browser/base/content/test/favicons/browser_title_flicker.js | Should not have marked a pending icon - 
[task 2020-07-13T07:21:28.154Z] 07:21:28     INFO - TEST-PASS | browser/base/content/test/favicons/browser_title_flicker.js | Should have seen the title in the same place. - 
[task 2020-07-13T07:21:28.154Z] 07:21:28     INFO - TEST-PASS | browser/base/content/test/favicons/browser_title_flicker.js | Should have loaded the new icon. - 
[task 2020-07-13T07:21:28.155Z] 07:21:28     INFO - TEST-PASS | browser/base/content/test/favicons/browser_title_flicker.js | Should not have marked a pending icon - 
[task 2020-07-13T07:21:28.155Z] 07:21:28     INFO - TEST-PASS | browser/base/content/test/favicons/browser_title_flicker.js | Should have seen the title in the same place. - 
[task 2020-07-13T07:21:28.157Z] 07:21:28     INFO - Leaving test bound 
[task 2020-07-13T07:21:28.158Z] 07:21:28     INFO - Entering test bound 
[task 2020-07-13T07:21:28.159Z] 07:21:28     INFO - Waiting for attribute label
[task 2020-07-13T07:21:28.160Z] 07:21:28     INFO - Buffered messages finished
[task 2020-07-13T07:21:28.160Z] 07:21:28     INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/favicons/browser_title_flicker.js | Should have seen the busy attribute - 
[task 2020-07-13T07:21:28.161Z] 07:21:28     INFO - Stack trace:
[task 2020-07-13T07:21:28.161Z] 07:21:28     INFO - chrome://mochikit/content/browser-test.js:test_ok:1299
[task 2020-07-13T07:21:28.162Z] 07:21:28     INFO - chrome://mochitests/content/browser/browser/base/content/test/favicons/browser_title_flicker.js:null:154
[task 2020-07-13T07:21:28.162Z] 07:21:28     INFO - chrome://browser/content/tabbrowser.js:_tabAttrModified:1357
[task 2020-07-13T07:21:28.162Z] 07:21:28     INFO - chrome://browser/content/tabbrowser.js:_setTabLabel:1523
[task 2020-07-13T07:21:28.163Z] 07:21:28     INFO - chrome://browser/content/tabbrowser.js:setTabTitle:1489
[task 2020-07-13T07:21:28.163Z] 07:21:28     INFO - chrome://browser/content/tabbrowser.js:onLocationChange:6177
[task 2020-07-13T07:21:28.164Z] 07:21:28     INFO - TEST-PASS | browser/base/content/test/favicons/browser_title_flicker.js | Should have seen tab remain the same size. - 
[task 2020-07-13T07:21:28.164Z] 07:21:28     INFO - Waiting for attribute busy
[task 2020-07-13T07:21:28.165Z] 07:21:28     INFO - Console message: [JavaScript Error: "The character encoding of the HTML document was not declared. The document will render with garbled text in some browser configurations if the document contains characters from outside the US-ASCII range. The character encoding of the page must be declared in the document or in the transfer protocol." {file: "http://example.com/browser/browser/base/content/test/favicons/file_with_slow_favicon.html" line: 0}]
...
```