Bug: Intermittent toolkit/components/thumbnails/test/browser_thumbnails_bg_no_auth_prompt.js | single tracking bug
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2023-07-13 00:54:04+00:00
Resolved: 2023-09-27 12:04:15+00:00

**Filed by:** ncsoregi [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=422465599&repo=mozilla-central
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/WiaF6Tf4Ti2OsDQV7h82TQ/runs/0/artifacts/public/logs/live_backing.log

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```
[task 2023-07-13T00:18:10.850Z] 00:18:10     INFO - TEST-PASS | toolkit/components/thumbnails/test/browser_thumbnails_bg_no_auth_prompt.js | Captured URL should be URL passed to capture. - 
[task 2023-07-13T00:18:10.851Z] 00:18:10     INFO - Buffered messages finished
[task 2023-07-13T00:18:10.852Z] 00:18:10     INFO - TEST-UNEXPECTED-FAIL | toolkit/components/thumbnails/test/browser_thumbnails_bg_no_auth_prompt.js | Thumbnail file should exist even though it requires auth. - 
[task 2023-07-13T00:18:10.852Z] 00:18:10     INFO - Stack trace:
[task 2023-07-13T00:18:10.852Z] 00:18:10     INFO - chrome://mochikit/content/browser-test.js:test_ok:1580
[task 2023-07-13T00:18:10.853Z] 00:18:10     INFO - chrome://mochitests/content/browser/toolkit/components/thumbnails/test/browser_thumbnails_bg_no_auth_prompt.js:thumbnails_bg_no_auth_prompt:21
[task 2023-07-13T00:18:10.853Z] 00:18:10     INFO - chrome://mochikit/content/browser-test.js:handleTask:1131
[task 2023-07-13T00:18:10.853Z] 00:18:10     INFO - chrome://mochikit/content/browser-test.js:_runTaskBasedTest:1203
[task 2023-07-13T00:18:10.853Z] 00:18:10     INFO - chrome://mochikit/content/browser-test.js:Tester_execTest:1345
[task 2023-07-13T00:18:10.853Z] 00:18:10     INFO - chrome://mochikit/content/browser-test.js:nextTest/<:1120
[task 2023-07-13T00:18:10.853Z] 00:18:10     INFO - chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:SimpleTest.waitForFocus/<:1056
[task 2023-07-13T00:18:10.853Z] 00:18:10     INFO - Not taking screenshot here: see the one that was previously logged
[task 2023-07-13T00:18:10.855Z] 00:18:10     INFO - TEST-UNEXPECTED-FAIL | toolkit/components/thumbnails/test/browser_thumbnails_bg_no_auth_prompt.js | Uncaught exception in test bound thumbnails_bg_no_auth_prompt - [Exception... "Component returned failure code: 0x80520012 (NS_ERROR_FILE_NOT_FOUND) [nsIFile.remove]"  nsresult: "0x80520012 (NS_ERROR_FILE_NOT_FOUND)"  location: "JS frame :: chrome://mochitests/content/browser/toolkit/components/thumbnails/test/head.js :: removeThumbnail :: line 106"  data: no]
[task 2023-07-13T00:18:10.855Z] 00:18:10     INFO - Stack trace:
[task 2023-07-13T00:18:10.856Z] 00:18:10     INFO - removeThumbnail@chrome://mochitests/content/browser/toolkit/components/thumbnails/test/head.js:106:8
[task 2023-07-13T00:18:10.856Z] 00:18:10     INFO - thumbnails_bg_no_auth_prompt@chrome://mochitests/content/browser/toolkit/components/thumbnails/test/browser_thumbnails_bg_no_auth_prompt.js:25:18
[task 2023-07-13T00:18:10.856Z] 00:18:10     INFO - async*handleTask@chrome://mochikit/content/browser-test.js:1131:26
[task 2023-07-13T00:18:10.856Z] 00:18:10     INFO - _runTaskBasedTest@chrome://mochikit/content/browser-test.js:1203:18
[task 2023-07-13T00:18:10.856Z] 00:18:10     INFO - Tester_execTest@chrome://mochikit/content/browser-test.js:1345:14
[task 2023-07-13T00:18:10.856Z] 00:18:10     INFO - nextTest/<@chrome://mochikit/content/browser-test.js:1120:14
[task 2023-07-13T00:18:10.856Z] 00:18:10     INFO - SimpleTest.waitForFocus/<@chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:1056:13
[task 2023-07-13T00:18:10.857Z] 00:18:10     INFO - Leaving test bound thumbnails_bg_no_auth_prompt
[task 2023-07-13T00:18:10.857Z] 00:18:10     INFO - Console message: [JavaScript Warning: "An iframe which has both allow-top-navigation and allow-top-navigation-by-user-activation for its sandbox attribute will permit top navigations." {file: "about:blank" line: 0}]
[task 2023-07-13T00:18:10.858Z] 00:18:10     INFO - GECKO(6632) | console.error: (new Error("Polling for changes failed: Unexpected content-type \"text/plain;charset=US-ASCII\".", "resource://services-settings/remote-settings.sys.mjs", 324))
[task 2023-07-13T00:18:10.859Z] 00:18:10     INFO - GECKO(6632) | MEMORY STAT | vsize 2104403MB | vsizeMaxContiguous 65549254MB | residentFast 315MB | heapAllocated 97MB
[task 2023-07-13T00:18:10.860Z] 00:18:10     INFO - TEST-OK | toolkit/components/thumbnails/test/browser_thumbnails_bg_no_auth_prompt.js | took 5313ms
```