Bug: Intermittent browser/components/firefoxview/tests/browser/browser_feature_callout.js | uncaught exception - TypeError: can't access property "parent_selector", CURRENT_SCREEN is undefined at POSITION_HANDLER@chrome://browser/content/featureCallout.mjs:
Status: RESOLVED
Priority: --
Resolution: FIXED
Created: 2022-08-04 15:16:17+00:00
Resolved: 2022-08-15 06:05:16+00:00

**Filed by:** imoraru [at] mozilla.com
**Parsed log:** https://treeherder.mozilla.org/logviewer?job_id=386416862&repo=autoland
**Full log:** https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/E6YSvflrTv-oQnIE4NM_Ig/runs/0/artifacts/public/logs/live_backing.log

---
```
[task 2022-08-04T14:16:28.771Z] 14:16:28     INFO - TEST-START | browser/components/firefoxview/tests/browser/browser_feature_callout.js
[task 2022-08-04T14:16:29.519Z] 14:16:29     INFO - TEST-INFO | started process screentopng
[task 2022-08-04T14:16:30.034Z] 14:16:30     INFO - TEST-INFO | screentopng: exit 0
[task 2022-08-04T14:16:30.034Z] 14:16:30     INFO - Buffered messages logged at 14:16:28
[task 2022-08-04T14:16:30.035Z] 14:16:30     INFO - Entering test bound feature_callout_renders_in_firefox_view
[task 2022-08-04T14:16:30.036Z] 14:16:30     INFO - Buffered messages logged at 14:16:29
[task 2022-08-04T14:16:30.037Z] 14:16:30     INFO - TEST-PASS | browser/components/firefoxview/tests/browser/browser_feature_callout.js | Feature Callout element exists - 
[task 2022-08-04T14:16:30.037Z] 14:16:30     INFO - Leaving test bound feature_callout_renders_in_firefox_view
[task 2022-08-04T14:16:30.038Z] 14:16:30     INFO - Entering test bound feature_callout_moves_on_screen_change
[task 2022-08-04T14:16:30.039Z] 14:16:30     INFO - Buffered messages finished
[task 2022-08-04T14:16:30.042Z] 14:16:30     INFO - TEST-UNEXPECTED-FAIL | browser/components/firefoxview/tests/browser/browser_feature_callout.js | uncaught exception - TypeError: can't access property "parent_selector", CURRENT_SCREEN is undefined at POSITION_HANDLER@chrome://browser/content/featureCallout.mjs:178:5
[task 2022-08-04T14:16:30.042Z] 14:16:30     INFO - 
[task 2022-08-04T14:16:30.042Z] 14:16:30     INFO - Stack trace:
[task 2022-08-04T14:16:30.042Z] 14:16:30     INFO - chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:simpletestOnerror:1965
[task 2022-08-04T14:16:30.042Z] 14:16:30     INFO - GECKO(10499) | JavaScript error: chrome://browser/content/featureCallout.mjs, line 178: TypeError: can't access property "parent_selector", CURRENT_SCREEN is undefined
[task 2022-08-04T14:16:30.042Z] 14:16:30     INFO - Console message: [JavaScript Error: "TypeError: can't access property "parent_selector", CURRENT_SCREEN is undefined" {file: "chrome://browser/content/featureCallout.mjs" line: 178}]
[task 2022-08-04T14:16:30.042Z] 14:16:30     INFO - POSITION_HANDLER@chrome://browser/content/featureCallout.mjs:178:5
[task 2022-08-04T14:16:30.042Z] 14:16:30     INFO - 
[task 2022-08-04T14:16:30.042Z] 14:16:30     INFO - TEST-PASS | browser/components/firefoxview/tests/browser/browser_feature_callout.js | Feature Callout moves to a new element when a user clicks the primary button - 
[task 2022-08-04T14:16:30.042Z] 14:16:30     INFO - Leaving test bound feature_callout_moves_on_screen_change
[task 2022-08-04T14:16:30.043Z] 14:16:30     INFO - Entering test bound feature_callout_is_not_show_twice
[task 2022-08-04T14:16:30.043Z] 14:16:30     INFO - TEST-PASS | browser/components/firefoxview/tests/browser/browser_feature_callout.js | Feature Callout tour does not render if the user finished it previously - 
[task 2022-08-04T14:16:30.058Z] 14:16:30     INFO - Leaving test bound feature_callout_is_not_show_twice
[task 2022-08-04T14:16:30.398Z] 14:16:30     INFO - GECKO(10499) | MEMORY STAT | vsize 11439MB | residentFast 526MB | heapAllocated 260MB
[task 2022-08-04T14:16:30.401Z] 14:16:30     INFO - TEST-OK | browser/components/firefoxview/tests/browser/browser_feature_callout.js | took 1629ms
[task 2022-08-04T14:16:30.432Z] 14:16:30     INFO - checking window state
[task 2022-08-04T14:16:30.463Z] 14:16:30     INFO - TEST-START | browser/components/firefoxview/tests/browser/browser_firefoxview.js
```