Bug: Intermittent browser/components/shell/test/browser_headless_screenshot_4.js | Test timed out -
Status: RESOLVED
Priority: P5
Resolution: INCOMPLETE
Created: 2021-04-09 12:12:34+00:00
Resolved: 2021-06-01 17:05:42+00:00

**Filed by:** csabou [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=335957321&repo=mozilla-central
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/TW-EHVgKQKCran02e6iFDA/runs/0/artifacts/public/logs/live_backing.log

---
```
[task 2021-04-09T11:26:33.596Z] 11:26:33     INFO - TEST-PASS | browser/components/shell/test/browser_headless_screenshot_4.js | Screenshot should be 1234 pixels wide - 
[task 2021-04-09T11:26:33.596Z] 11:26:33     INFO - Buffered messages finished
[task 2021-04-09T11:26:33.597Z] 11:26:33     INFO - TEST-UNEXPECTED-FAIL | browser/components/shell/test/browser_headless_screenshot_4.js | Test timed out - 
[task 2021-04-09T11:26:33.597Z] 11:26:33     INFO - GECKO(6972) | MEMORY STAT | vsize 2803MB | residentFast 260MB | heapAllocated 86MB
[task 2021-04-09T11:26:33.598Z] 11:26:33     INFO - TEST-OK | browser/components/shell/test/browser_headless_screenshot_4.js | took 45005ms
[task 2021-04-09T11:26:33.598Z] 11:26:33     INFO - checking window state
[task 2021-04-09T11:26:33.598Z] 11:26:33     INFO - TEST-START | browser/components/shell/test/browser_headless_screenshot_cross_origin.js
[task 2021-04-09T11:26:55.040Z] 11:26:55     INFO - GECKO(6972) | ExceptionHandler::GenerateDump cloned child 8922
[task 2021-04-09T11:26:55.041Z] 11:26:55     INFO - GECKO(6972) | ExceptionHandler::SendContinueSignalToChild sent continue signal to child
[task 2021-04-09T11:26:55.042Z] 11:26:55     INFO - GECKO(6972) | ExceptionHandler::WaitForContinueSignal waiting for continue signal...
[task 2021-04-09T11:26:55.084Z] 11:26:55     INFO - Not taking screenshot here: see the one that was previously logged
[task 2021-04-09T11:26:55.085Z] 11:26:55     INFO - Buffered messages logged at 11:26:33
[task 2021-04-09T11:26:55.085Z] 11:26:55     INFO - Entering test bound 
[task 2021-04-09T11:26:55.086Z] 11:26:55     INFO - Buffered messages finished
[task 2021-04-09T11:26:55.086Z] 11:26:55     INFO - TEST-UNEXPECTED-FAIL | browser/components/shell/test/browser_headless_screenshot_4.js | Uncaught exception received from previously timed out test - at chrome://mochitests/content/browser/browser/components/shell/test/head.js:45 - ReferenceError: is is not defined
[task 2021-04-09T11:26:55.086Z] 11:26:55     INFO - Stack trace:
[task 2021-04-09T11:26:55.086Z] 11:26:55     INFO - runFirefox@chrome://mochitests/content/browser/browser/components/shell/test/head.js:45:3
[task 2021-04-09T11:27:18.374Z] 11:27:18     INFO - Not taking screenshot here: see the one that was previously logged
[task 2021-04-09T11:27:18.375Z] 11:27:18     INFO - TEST-UNEXPECTED-FAIL | browser/components/shell/test/browser_headless_screenshot_cross_origin.js | Test timed out - 
[task 2021-04-09T11:27:18.377Z] 11:27:18     INFO - GECKO(6972) | MEMORY STAT | vsize 2799MB | residentFast 260MB | heapAllocated 86MB
[task 2021-04-09T11:27:18.377Z] 11:27:18     INFO - TEST-OK | browser/components/shell/test/browser_headless_screenshot_cross_origin.js | took 45005ms
[task 2021-04-09T11:27:18.394Z] 11:27:18     INFO - checking window state
[task 2021-04-09T11:27:18.395Z] 11:27:18     INFO - GECKO(6972) | must wait for focus
[task 2021-04-09T11:27:18.433Z] 11:27:18     INFO - TEST-START | browser/components/shell/test/browser_headless_screenshot_redirect.js```