Bug: Intermittent browser/base/content/test/zoom/browser_mousewheel_zoom.js | undefined - timed out after 50 tries. - | Found an unexpected tab at the end of test run: http://example.org/browser/browser/base/content/test/zoom/zoom_test.html
Status: RESOLVED
Priority: P5
Resolution: DUPLICATE
Created: 2021-08-11 01:42:56+00:00
Resolved: 2022-07-26 00:14:45+00:00

**Filed by:** abutkovits [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=348037525&repo=mozilla-central
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/ZFgxkRRvRaWJn_zgH4iQUg/runs/0/artifacts/public/logs/live_backing.log

---
```
[task 2021-08-11T01:04:00.643Z] 01:04:00     INFO - TEST-START | browser/base/content/test/zoom/browser_mousewheel_zoom.js
[task 2021-08-11T01:04:00.985Z] 01:04:00     INFO - GECKO(1059) | console.info: Wait tab event: load
[task 2021-08-11T01:04:00.986Z] 01:04:00     INFO - GECKO(1059) | console.info: Expecting load for:  http://example.org/browser/browser/base/content/test/zoom/zoom_test.html
[task 2021-08-11T01:04:01.028Z] 01:04:01     INFO - GECKO(1059) | console.info: Tab event received: load
[task 2021-08-11T01:04:01.029Z] 01:04:01     INFO - GECKO(1059) | console.info: Wait tab event: load
[task 2021-08-11T01:04:01.029Z] 01:04:01     INFO - GECKO(1059) | console.info: Expecting load for:  http://example.org/browser/browser/base/content/test/zoom/zoom_test.html
[task 2021-08-11T01:04:01.038Z] 01:04:01     INFO - GECKO(1059) | console.info: Tab event received: load
[task 2021-08-11T01:04:05.609Z] 01:04:05     INFO - GECKO(1059) | 2021-08-11 01:04:05.608 firefox[1059:17596] Persistent UI failed to open file file:///Users/cltbld/Library/Saved%20Application%20State/org.mozilla.nightly.savedState/window_1.data: No such file or directory (2)
[task 2021-08-11T01:04:07.880Z] 01:04:07     INFO - TEST-INFO | started process screencapture
[task 2021-08-11T01:04:08.028Z] 01:04:08     INFO - TEST-INFO | screencapture: exit 0
[task 2021-08-11T01:04:08.028Z] 01:04:08     INFO - Buffered messages logged at 01:04:01
[task 2021-08-11T01:04:08.029Z] 01:04:08     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.org/browser/browser/base/content/test/zoom/zoom_test.html" line: 0}]
[task 2021-08-11T01:04:08.029Z] 01:04:08     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.org/browser/browser/base/content/test/zoom/zoom_test.html" line: 0}]
[task 2021-08-11T01:04:08.029Z] 01:04:08     INFO - TEST-PASS | browser/base/content/test/zoom/browser_mousewheel_zoom.js | Tab 1 is selected - 
[task 2021-08-11T01:04:08.029Z] 01:04:08     INFO - TEST-PASS | browser/base/content/test/zoom/browser_mousewheel_zoom.js | Initial zoom of tab 1 should be 1 - 
[task 2021-08-11T01:04:08.029Z] 01:04:08     INFO - TEST-PASS | browser/base/content/test/zoom/browser_mousewheel_zoom.js | Initial zoom of tab 2 should be 1 - 
[task 2021-08-11T01:04:08.029Z] 01:04:08     INFO - Waiting for tab 1 to be zoomed
[task 2021-08-11T01:04:08.030Z] 01:04:08     INFO - Buffered messages finished
[task 2021-08-11T01:04:08.030Z] 01:04:08     INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/zoom/browser_mousewheel_zoom.js | undefined - timed out after 50 tries. - 
[task 2021-08-11T01:04:08.030Z] 01:04:08     INFO - Stack trace:
[task 2021-08-11T01:04:08.030Z] 01:04:08     INFO - chrome://mochikit/content/browser-test.js:test_ok:1343
[task 2021-08-11T01:04:08.030Z] 01:04:08     INFO - chrome://mochitests/content/browser/browser/base/content/test/zoom/head.js:failAndContinue/<:186
[task 2021-08-11T01:04:08.030Z] 01:04:08     INFO - Console message: [JavaScript Error: "undefined - timed out after 50 tries." {file: "chrome://mochitests/content/browser/browser/base/content/test/zoom/head.js" line: 185}]
[task 2021-08-11T01:04:08.030Z] 01:04:08     INFO - failAndContinue/<@chrome://mochitests/content/browser/browser/base/content/test/zoom/head.js:185:10
[task 2021-08-11T01:04:08.030Z] 01:04:08     INFO - 
[task 2021-08-11T01:04:08.030Z] 01:04:08     INFO - GECKO(1059) | MEMORY STAT | vsize 402344MB | residentFast 341MB | heapAllocated 109MB
[task 2021-08-11T01:04:08.030Z] 01:04:08     INFO - TEST-OK | browser/base/content/test/zoom/browser_mousewheel_zoom.js | took 7244ms
```