Bug: High frequency browser/components/customizableui/test/browser_backfwd_enabled_post_customize.js | Forward button shouldn't be disabled -
Status: RESOLVED
Priority: --
Resolution: FIXED
Created: 2020-11-24 18:45:11+00:00
Resolved: 2021-06-18 09:31:36+00:00

**Filed by:** cbrindusan [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=322686925&repo=mozilla-central
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/EkrSUhSNQpSsrpLqXRXEYQ/runs/0/artifacts/public/logs/live_backing.log

---
```
[task 2020-11-24T10:13:44.620Z] 10:13:44     INFO - TEST-START | browser/components/customizableui/test/browser_backfwd_enabled_post_customize.js
[task 2020-11-24T10:13:44.677Z] 10:13:44     INFO - GECKO(11925) | [Child 12458: Main Thread]: I/DocShellAndDOMWindowLeak ++DOCSHELL 0x7f3091946400 == 1 [pid = 12458] [id = 0]
[task 2020-11-24T10:13:44.677Z] 10:13:44     INFO - GECKO(11925) | [Child 12458: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 1 (0x7f30adfb2040) [pid = 12458] [serial = 1] [outer = (nil)]
[task 2020-11-24T10:13:44.677Z] 10:13:44     INFO - GECKO(11925) | [Child 12458: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 2 (0x7f3091948000) [pid = 12458] [serial = 2] [outer = 0x7f30adfb2040]
[task 2020-11-24T10:13:44.954Z] 10:13:44     INFO - GECKO(11925) | [Child 12458, Main Thread] WARNING: NS_ENSURE_TRUE(info) failed: file /builds/worker/checkouts/gecko/extensions/permissions/PermissionDelegateHandler.cpp:348
[task 2020-11-24T10:13:44.962Z] 10:13:44     INFO - GECKO(11925) | [Child 12458: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 3 (0x7f3097d06400) [pid = 12458] [serial = 3] [outer = 0x7f30adfb2040]
[task 2020-11-24T10:13:45.000Z] 10:13:45     INFO - GECKO(11925) | [Parent 11925: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 71 (0x7f86d0f7e000) [pid = 11925] [serial = 155] [outer = (nil)] [url = about:blank]
[task 2020-11-24T10:13:45.000Z] 10:13:45     INFO - GECKO(11925) | [Parent 11925: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 70 (0x7f86cd82c400) [pid = 11925] [serial = 153] [outer = (nil)] [url = about:blank]
[task 2020-11-24T10:13:45.000Z] 10:13:45     INFO - GECKO(11925) | [Parent 11925: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 69 (0x7f86e18a5400) [pid = 11925] [serial = 147] [outer = (nil)] [url = about:blank]
[task 2020-11-24T10:13:45.000Z] 10:13:45     INFO - GECKO(11925) | [Parent 11925: Main Thread]: I/DocShellAndDOMWindowLeak --DOMWINDOW == 68 (0x7f86d0f7e800) [pid = 11925] [serial = 151] [outer = (nil)] [url = about:blank]
[task 2020-11-24T10:13:46.182Z] 10:13:46     INFO - GECKO(11925) | [Child 12458: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 4 (0x7f30919a0400) [pid = 12458] [serial = 4] [outer = 0x7f30adfb2040]
[task 2020-11-24T10:13:46.312Z] 10:13:46     INFO - GECKO(11925) | ### XPCOM_MEM_BLOAT_LOG defined -- logging bloat/leaks to /tmp/tmpphK_T8.mozrunner/runtests_leaks_tab_pid12546.log
[task 2020-11-24T10:13:46.313Z] 10:13:46     INFO - GECKO(11925) | [12546, Main Thread] WARNING: XPCOM_MEM_BLOAT_LOG is set, disabling native allocations.: file /builds/worker/checkouts/gecko/tools/profiler/core/platform.cpp:251
[task 2020-11-24T10:13:46.441Z] 10:13:46     INFO - GECKO(11925) | [Child 12546, Main Thread] WARNING: could not set real-time limit in CubebUtils::InitLibrary: file /builds/worker/checkouts/gecko/dom/media/CubebUtils.cpp:629
[task 2020-11-24T10:13:46.449Z] 10:13:46     INFO - GECKO(11925) | [Child 12458: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 5 (0x7f3091995800) [pid = 12458] [serial = 5] [outer = 0x7f30adfb2040]
[task 2020-11-24T10:13:46.630Z] 10:13:46     INFO - GECKO(11925) | [Child 12458: Main Thread]: I/DocShellAndDOMWindowLeak ++DOMWINDOW == 6 (0x7f3091cc7000) [pid = 12458] [serial = 6] [outer = 0x7f30adfb2040]
[task 2020-11-24T10:13:46.701Z] 10:13:46     INFO - TEST-INFO | started process screentopng
[task 2020-11-24T10:13:47.087Z] 10:13:47     INFO - TEST-INFO | screentopng: exit 0
[task 2020-11-24T10:13:47.087Z] 10:13:47     INFO - Buffered messages logged at 10:13:44
[task 2020-11-24T10:13:47.088Z] 10:13:47     INFO - Entering test bound test_back_forward_buttons
[task 2020-11-24T10:13:47.089Z] 10:13:47     INFO - Buffered messages logged at 10:13:46
[task 2020-11-24T10:13:47.089Z] 10:13:47     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: "data:text/html,A separate page" line: 0}]
[task 2020-11-24T10:13:47.090Z] 10:13:47     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: "data:text/html,Another separate page" line: 0}]
[task 2020-11-24T10:13:47.090Z] 10:13:47     INFO - TEST-PASS | browser/components/customizableui/test/browser_backfwd_enabled_post_customize.js | Back button shouldn't be disabled - 
[task 2020-11-24T10:13:47.091Z] 10:13:47     INFO - Buffered messages finished
[task 2020-11-24T10:13:47.092Z] 10:13:47     INFO - TEST-UNEXPECTED-FAIL | browser/components/customizableui/test/browser_backfwd_enabled_post_customize.js | Forward button shouldn't be disabled - ```