Bug: Intermittent [TV] browser/base/content/test/about/browser_aboutHome_search_POST.js | Uncaught exception - undefined - timed out after 50 tries.
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2021-04-09 23:15:34+00:00
Resolved: 2021-05-04 17:03:56+00:00

**Filed by:** nbeleuzu [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=336021577&repo=autoland
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/S418thOMQmejNRIh2cp6ag/runs/0/artifacts/public/logs/live_backing.log
**Reftest URL:** https://hg.mozilla.org/mozilla-central/raw-file/tip/layout/tools/reftest/reftest-analyzer.xhtml#logurl=https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/S418thOMQmejNRIh2cp6ag/runs/0/artifacts/public/logs/live_backing.log&only_show_unexpected=1

---
```
[task 2021-04-09T21:47:35.064Z] 21:47:35     INFO - TEST-INFO | screentopng: exit 0
[task 2021-04-09T21:47:35.065Z] 21:47:35     INFO - Buffered messages logged at 21:47:28
[task 2021-04-09T21:47:35.065Z] 21:47:35     INFO - Entering test bound 
[task 2021-04-09T21:47:35.066Z] 21:47:35     INFO - Check POST search engine support
[task 2021-04-09T21:47:35.066Z] 21:47:35     INFO - Global property added while loading chrome://browser/content/places/browserPlacesViews.js: PlacesViewBase
[task 2021-04-09T21:47:35.067Z] 21:47:35     INFO - Buffered messages logged at 21:47:29
[task 2021-04-09T21:47:35.067Z] 21:47:35     INFO - Observer: engine-loaded for POST Search
[task 2021-04-09T21:47:35.067Z] 21:47:35     INFO - Observer: engine-added for POST Search
[task 2021-04-09T21:47:35.068Z] 21:47:35     INFO - Buffered messages finished
[task 2021-04-09T21:47:35.068Z] 21:47:35     INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/about/browser_aboutHome_search_POST.js | Uncaught exception - undefined - timed out after 50 tries.
[task 2021-04-09T21:47:35.069Z] 21:47:35     INFO - Leaving test bound 
[task 2021-04-09T21:47:35.069Z] 21:47:35     INFO - GECKO(2406) | MEMORY STAT vsizeMaxContiguous not supported in this build configuration.
[task 2021-04-09T21:47:35.070Z] 21:47:35     INFO - GECKO(2406) | MEMORY STAT | vsize 2868MB | residentFast 324MB | heapAllocated 93MB
[task 2021-04-09T21:47:35.072Z] 21:47:35     INFO - TEST-OK | browser/base/content/test/about/browser_aboutHome_search_POST.js | took 6075ms
[task 2021-04-09T21:47:35.072Z] 21:47:35     INFO - Not taking screenshot here: see the one that was previously logged
[task 2021-04-09T21:47:35.073Z] 21:47:35     INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/about/browser_aboutHome_search_POST.js | Found an unexpected tab at the end of test run: about:home - 
[task 2021-04-09T21:47:35.073Z] 21:47:35     INFO - GECKO(2406) | [Child 2464: Main Thread]: I/DocShellAndDOMWindowLeak ++DOCSHELL 7fde997bcc00 == 1 [pid = 2464] [id = 1]
[task 2021-04-09T21:47:35.074Z] 21:47:35     INFO - GECKO(2406) | [Child 2464: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 5 (7fdeb5f63c80) [pid = 2464] [serial = 5] [outer = 0]
[task 2021-04-09T21:47:35.074Z] 21:47:35     INFO - GECKO(2406) | [Child 2464: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 6 (7fde997be400) [pid = 2464] [serial = 6] [outer = 7fdeb5f63c80]
[task 2021-04-09T21:47:35.074Z] 21:47:35     INFO - GECKO(2406) | [Child 2549, Main Thread] WARNING: NS_ENSURE_SUCCESS(rv, rv) failed with result 0x80040111 (NS_ERROR_NOT_AVAILABLE): file /builds/worker/checkouts/gecko/caps/BasePrincipal.cpp:1349
[task 2021-04-09T21:47:35.074Z] 21:47:35     INFO - checking window state
[task 2021-04-09T21:47:35.075Z] 21:47:35     INFO - GECKO(2406) | [Child 2549, Main Thread] WARNING: NS_ENSURE_TRUE(!mHasOrHasHadOwnerWindow || mOwnerWindow) failed: file /builds/worker/checkouts/gecko/dom/events/DOMEventTargetHelper.cpp:327
[task 2021-04-09T21:47:35.075Z] 21:47:35     INFO - GECKO(2406) | JavaScript error: resource:///actors/ContentSearchParent.jsm, line 624: TypeError: can't access property "addEventListener", browser is null
[task 2021-04-09T21:47:35.076Z] 21:47:35     INFO - GECKO(2406) | [Parent 2406: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 14 (7ff692f5cc00) [pid = 2406] [serial = 16] [outer = 7ff69c7a7ac0]
[task 2021-04-09T21:47:35.076Z] 21:47:35     INFO - GECKO(2406) | [Child 2549, Main Thread] WARNING: NS_ENSURE_SUCCESS(rv, rv) failed with result 0x80040111 (NS_ERROR_NOT_AVAILABLE): file /builds/worker/checkouts/gecko/caps/BasePrincipal.cpp:1349
[task 2021-04-09T21:47:35.076Z] 21:47:35     INFO - Console message: [JavaScript Error: "TypeError: can't access property "addEventListener", browser is null" {file: "resource:///actors/ContentSearchParent.jsm" line: 624}]
[task 2021-04-09T21:47:35.077Z] 21:47:35     INFO - receiveMessage@resource:///actors/ContentSearchParent.jsm:624:5```