Bug: Intermittent browser/base/content/test/general/browser_bug710878.js | single tracking bug
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2022-09-20 15:13:07+00:00
Resolved: 2023-06-30 12:03:01+00:00

**Filed by:** apavel [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=390933517&repo=try
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/KJVpKvk7TKS2fxxASsJgiw/runs/0/artifacts/public/logs/live_backing.log

---
```
[task 2022-09-20T12:58:45.243Z] 12:58:45     INFO - TEST-START | browser/base/content/test/general/browser_bug710878.js
[task 2022-09-20T12:59:30.287Z] 12:59:30     INFO - TEST-INFO | started process screentopng
[task 2022-09-20T12:59:30.499Z] 12:59:30     INFO - TEST-INFO | screentopng: exit 0
[task 2022-09-20T12:59:30.499Z] 12:59:30     INFO - Buffered messages logged at 12:58:45
[task 2022-09-20T12:59:30.500Z] 12:59:30     INFO - Entering test bound 
[task 2022-09-20T12:59:30.501Z] 12:59:30     INFO - Console message: [JavaScript Warning: "This page is in Quirks Mode. Page layout may be impacted. For Standards Mode use “<!DOCTYPE html>”." {file: "data:text/html;charset=utf-8,<a href='%23xxx'><span>word1 <span> word2 </span></span><span> word3</span></a>" line: 0}]
[task 2022-09-20T12:59:30.502Z] 12:59:30     INFO - Buffered messages finished
[task 2022-09-20T12:59:30.503Z] 12:59:30     INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/general/browser_bug710878.js | Test timed out - 
[task 2022-09-20T12:59:30.503Z] 12:59:30     INFO - GECKO(3606) | MEMORY STAT | vsize 3617MB | residentFast 428MB | heapAllocated 305MB
[task 2022-09-20T12:59:30.504Z] 12:59:30     INFO - TEST-OK | browser/base/content/test/general/browser_bug710878.js | took 45049ms
[task 2022-09-20T12:59:30.507Z] 12:59:30     INFO - Not taking screenshot here: see the one that was previously logged
[task 2022-09-20T12:59:30.507Z] 12:59:30     INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/general/browser_bug710878.js | Found a tab after previous test timed out: data:text/html;charset=utf-8,<a href='%23xxx'><span>word1 <span> word2 </span></span><span> word3</span></a> - 
[task 2022-09-20T12:59:30.507Z] 12:59:30     INFO - checking window state
[task 2022-09-20T12:59:30.507Z] 12:59:30     INFO - TEST-START | browser/base/content/test/general/browser_bug724239.js
[task 2022-09-20T12:59:30.508Z] 12:59:30     INFO - Not taking screenshot here: see the one that was previously logged
[task 2022-09-20T12:59:30.508Z] 12:59:30     INFO - Buffered messages logged at 12:59:30
[task 2022-09-20T12:59:30.509Z] 12:59:30     INFO - Entering test bound test_blank
[task 2022-09-20T12:59:30.509Z] 12:59:30     INFO - Buffered messages finished
[task 2022-09-20T12:59:30.509Z] 12:59:30     INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/general/browser_bug710878.js | Uncaught exception received from previously timed out test - at chrome://mochitests/content/browser/browser/base/content/test/general/browser_bug710878.js:19 - TypeError: can't access property "waitForEvent", BrowserTestUtils is null
[task 2022-09-20T12:59:30.509Z] 12:59:30     INFO - Stack trace:
[task 2022-09-20T12:59:30.509Z] 12:59:30     INFO - @chrome://mochitests/content/browser/browser/base/content/test/general/browser_bug710878.js:19:29
[task 2022-09-20T12:59:30.509Z] 12:59:30     INFO - withNewTab@resource://testing-common/BrowserTestUtils.jsm:151:24
[task 2022-09-20T12:59:30.510Z] 12:59:30     INFO - GECKO(3606) | JavaScript error: chrome://mochikit/content/browser-test.js, line 1108: TypeError: can't access property "shift", currentScope.__tasks is null
[task 2022-09-20T12:59:30.510Z] 12:59:30     INFO - Console message: [JavaScript Error: "TypeError: can't access property "shift", currentScope.__tasks is null" {file: "chrome://mochikit/content/browser-test.js" line: 1108}]
[task 2022-09-20T13:00:15.440Z] 13:00:15     INFO - Not taking screenshot here: see the one that was previously logged
[task 2022-09-20T13:00:15.441Z] 13:00:15     INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/general/browser_bug724239.js | Test timed out - 
[task 2022-09-20T13:00:15.441Z] 13:00:15     INFO - Not taking screenshot here: see the one that was previously logged
[task 2022-09-20T13:00:15.442Z] 13:00:15     INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/general/browser_bug724239.js | A promise chain failed to handle a rejection: can't access property "shift", currentScope.__tasks is null - stack: _runTaskBasedTest@chrome://mochikit/content/browser-test.js:1108:13
[task 2022-09-20T13:00:15.442Z] 13:00:15     INFO - Rejection date: Tue Sep 20 2022 12:59:30 GMT+0000 (Coordinated Universal Time) - false == true - JS frame :: resource://testing-common/PromiseTestUtils.jsm :: assertNoUncaughtRejections :: line 270
[task 2022-09-20T13:00:15.442Z] 13:00:15     INFO - Stack trace:
[task 2022-09-20T13:00:15.443Z] 13:00:15     INFO - resource://testing-common/PromiseTestUtils.jsm:assertNoUncaughtRejections:270
[task 2022-09-20T13:00:15.443Z] 13:00:15     INFO - chrome://mochikit/content/browser-test.js:nextTest:680
[task 2022-09-20T13:00:15.443Z] 13:00:15     INFO - chrome://mochikit/content/browser-test.js:timeoutFn:1345
[task 2022-09-20T13:00:15.447Z] 13:00:15     INFO - GECKO(3606) | MEMORY STAT | vsize 3616MB | residentFast 428MB | heapAllocated 304MB
[task 2022-09-20T13:00:15.448Z] 13:00:15     INFO - TEST-OK | browser/base/content/test/general/browser_bug724239.js | took 45059ms
[task 2022-09-20T13:00:15.448Z] 13:00:15     INFO - Not taking screenshot here: see the one that was previously logged
[task 2022-09-20T13:00:15.448Z] 13:00:15     INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/general/browser_bug724239.js | Found a tab after previous test timed out: about:blank - 
[task 2022-09-20T13:00:15.488Z] 13:00:15     INFO - checking window state
[task 2022-09-20T13:00:15.495Z] 13:00:15     INFO - TEST-START | browser/base/content/test/general/browser_bug734076.js
[task 2022-09-20T13:01:00.503Z] 13:01:00     INFO - Not taking screenshot here: see the one that was previously logged
[task 2022-09-20T13:01:00.504Z] 13:01:00     INFO - Buffered messages logged at 13:00:15
[task 2022-09-20T13:01:00.505Z] 13:01:00     INFO - Entering test bound 
[task 2022-09-20T13:01:00.506Z] 13:01:00     INFO - Buffered messages finished
[task 2022-09-20T13:01:00.507Z] 13:01:00     INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/general/browser_bug734076.js | Test timed out - 
[task 2022-09-20T13:01:00.509Z] 13:01:00     INFO - GECKO(3606) | MEMORY STAT | vsize 3616MB | residentFast 429MB | heapAllocated 306MB
[task 2022-09-20T13:01:00.510Z] 13:01:00     INFO - TEST-OK | browser/base/content/test/general/browser_bug734076.js | took 45014ms
[task 2022-09-20T13:01:00.511Z] 13:01:00     INFO - Not taking screenshot here: see the one that was previously logged
[task 2022-09-20T13:01:00.512Z] 13:01:00     INFO - TEST-UNEXPECTED-FAIL | browser/base/content/test/general/browser_bug734076.js | Found a tab after previous test timed out: about:blank - 
[task 2022-09-20T13:01:00.550Z] 13:01:00     INFO - checking window state
```