1789426 - Intermittent /html/semantics/scripting-1/the-script-element/moving-between-documents/move-back-iframe-fetch-error-external-module.html | single tracking bug

Status: RESOLVED INCOMPLETE

(Core :: DOM: Core & HTML, defect)

Description

[Treeherder Bug Filer]

Filed by: nfay [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer?job_id=389607221&repo=autoland
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/GmCWCGN7Tj6OIOdeqWWtqw/runs/0/artifacts/public/logs/live_backing.log

---

[task 2022-09-06T14:06:38.507Z] 14:06:38     INFO - TEST-START | /screen-capture/permissions-policy-audio.https.sub.html
[task 2022-09-06T14:06:38.536Z] 14:06:38     INFO - Closing window 27cc6b5d-166b-4c74-9a6d-e331d110cf9d
[task 2022-09-06T14:06:39.240Z] 14:06:39     INFO - 
[task 2022-09-06T14:06:39.240Z] 14:06:39     INFO - TEST-PASS | /html/semantics/scripting-1/the-script-element/moving-between-documents/move-back-iframe-fetch-error-external-module.html | Sanity check around top-level Window 
[task 2022-09-06T14:06:39.240Z] 14:06:39     INFO - TEST-UNEXPECTED-NOTRUN | /html/semantics/scripting-1/the-script-element/moving-between-documents/move-back-iframe-fetch-error-external-module.html | Eval: Move fetch-error external module script to iframe move-back - expected PASS
[task 2022-09-06T14:06:39.242Z] 14:06:39     INFO - 
[task 2022-09-06T14:06:39.242Z] 14:06:39     INFO - TEST-UNEXPECTED-NOTRUN | /html/semantics/scripting-1/the-script-element/moving-between-documents/move-back-iframe-fetch-error-external-module.html | <script> load: Move fetch-error external module script to iframe move-back - expected PASS
[task 2022-09-06T14:06:39.245Z] 14:06:39     INFO - 
[task 2022-09-06T14:06:39.245Z] 14:06:39     INFO - TEST-KNOWN-INTERMITTENT-FAIL | /html/semantics/scripting-1/the-script-element/moving-between-documents/move-back-iframe-fetch-error-external-module.html | <script> error: Move fetch-error external module script to iframe move-back - assert_unreached: Script error evennt fired unexpectedly Reached unreachable code
[task 2022-09-06T14:06:39.245Z] 14:06:39     INFO - scriptOnError@http://web-platform.test:8000/html/semantics/scripting-1/the-script-element/moving-between-documents/resources/moving-between-documents-helper.js:122:79
[task 2022-09-06T14:06:39.245Z] 14:06:39     INFO - onerror@http://web-platform.test:8000/html/semantics/scripting-1/the-script-element/moving-between-documents/resources/moving-between-documents-iframe.py?result=fetch-error&inlineOrExternal=external&type=module&hasBlockingStylesheet=true&cache=0.7771799842927469:1:14
[task 2022-09-06T14:06:39.245Z] 14:06:39     INFO - 
[task 2022-09-06T14:06:39.245Z] 14:06:39     INFO - TEST-UNEXPECTED-NOTRUN | /html/semantics/scripting-1/the-script-element/moving-between-documents/move-back-iframe-fetch-error-external-module.html | window error: Move fetch-error external module script to iframe move-back - expected PASS
[task 2022-09-06T14:06:39.245Z] 14:06:39     INFO - TEST-UNEXPECTED-ERROR | /html/semantics/scripting-1/the-script-element/moving-between-documents/move-back-iframe-fetch-error-external-module.html | Unhandled rejection: Node.appendChild: Argument 1 is not an object.
[task 2022-09-06T14:06:39.245Z] 14:06:39     INFO - runTest@http://web-platform.test:8000/html/semantics/scripting-1/the-script-element/moving-between-documents/resources/moving-between-documents-helper.js:144:23
[task 2022-09-06T14:06:39.245Z] 14:06:39     INFO - TEST-INFO took 60322ms
[task 2022-09-06T14:06:39.247Z] 14:06:39     INFO - PID 24317 | 1662473199241	Marionette	INFO	Stopped listening on port 50740
[task 2022-09-06T14:06:39.249Z] 14:06:39     INFO - PID 24317 | [Parent 24317, Main Thread] WARNING: ContentParent: id=7f20f9eb1e00 - BlockShutdown: NotifyImpendingShutdown.: file /builds/worker/checkouts/gecko/dom/ipc/ContentParent.cpp:3627
[task 2022-09-06T14:06:39.249Z] 14:06:39     INFO - PID 24317 | [Parent 24317, Main Thread] WARNING: ContentParent: id=7f20f9eb1e00 - BlockShutdown: RequestContentJSInterrupt.: file /builds/worker/checkouts/gecko/dom/ipc/ContentParent.cpp:3633
[task 2022-09-06T14:06:39.251Z] 14:06:39     INFO - PID 24317 | [Parent 24317, Main Thread] WARNING: ContentParent: id=7f20f8f9e600 - BlockShutdown: NotifyImpendingShutdown.: file /builds/worker/checkouts/gecko/dom/ipc/ContentParent.cpp:3627
[task 2022-09-06T14:06:39.251Z] 14:06:39     INFO - PID 24317 | [Parent 24317, Main Thread] WARNING: ContentParent: id=7f20f8f9e600 - BlockShutdown: RequestContentJSInterrupt.: file /builds/worker/checkouts/gecko/dom/ipc/ContentParent.cpp:3633
[task 2022-09-06T14:06:39.252Z] 14:06:39     INFO - PID 24317 | [Parent 24317, Main Thread] WARNING: ContentParent: id=7f20f22fbe00 - BlockShutdown: NotifyImpendingShutdown.: file /builds/worker/checkouts/gecko/dom/ipc/ContentParent.cpp:3627
[task 2022-09-06T14:06:39.253Z] 14:06:39     INFO - PID 24317 | [Parent 24317, Main Thread] WARNING: ContentParent: id=7f20f22fbe00 - BlockShutdown: RequestContentJSInterrupt.: file /builds/worker/checkouts/gecko/dom/ipc/ContentParent.cpp:3633
[task 2022-09-06T14:06:39.258Z] 14:06:39     INFO - PID 24317 | [Parent 24317, Main Thread] WARNING: ContentParent: id=7f20f22f9600 - BlockShutdown: NotifyImpendingShutdown.: file /builds/worker/checkouts/gecko/dom/ipc/ContentParent.cpp:3627
[task 2022-09-06T14:06:39.259Z] 14:06:39     INFO - PID 24317 | [Parent 24317, Main Thread] WARNING: ContentParent: id=7f20f22f9600 - BlockShutdown: RequestContentJSInterrupt.: file /builds/worker/checkouts/gecko/dom/ipc/ContentParent.cpp:3633
[task 2022-09-06T14:06:39.368Z] 14:06:39     INFO - PID 24317 | [Parent 24317, Main Thread] WARNING: ContentParent: id=7f20f22f9600 - BlockShutdown: CanSend.: file /builds/worker/checkouts/gecko/dom/ipc/ContentParent.cpp:3672
[task 2022-09-06T14:06:39.369Z] 14:06:39     INFO - PID 24317 | [Parent 24317, Main Thread] WARNING: ContentParent: id=7f20f22f9600 - ShutDownProcess: Sent shutdown message.: file /builds/worker/checkouts/gecko/dom/ipc/ContentParent.cpp:1804
[task 2022-09-06T14:06:39.377Z] 14:06:39     INFO - PID 24317 | [Parent 24317, Main Thread] WARNING: ContentParent: id=7f20f22f9600 - ShutDownProcess: Closing channel.: file /builds/worker/checkouts/gecko/dom/ipc/ContentParent.cpp:1844
[task 2022-09-06T14:06:39.380Z] 14:06:39     INFO - PID 24317 | [Parent 24317, Main Thread] WARNING: ContentParent: id=7f20f22f9600 - RemoveShutdownBlockers: file /builds/worker/checkouts/gecko/dom/ipc/ContentParent.cpp:3787
[task 2022-09-06T14:06:39.580Z] 14:06:39     INFO - Browser exited with return code 0
[task 2022-09-06T14:06:39.583Z] 14:06:39     INFO - Closing logging queue
[task 2022-09-06T14:06:39.583Z] 14:06:39     INFO - queue closed
[task 2022-09-06T14:06:39.630Z] 14:06:39     INFO - Application command: /builds/worker/workspace/build/application/firefox/firefox --marionette about:blank -profile /tmp/tmp1u4ugzop
[task 2022-09-06T14:06:39.655Z] 14:06:39     INFO - Starting runner
[task 2022-09-06T14:06:40.390Z] 14:06:40     INFO - PID 6333 | 1662473200389	Marionette	INFO	Marionette enabled
[task 2022-09-06T14:06:40.393Z] 14:06:40     INFO - PID 6333 | 1662473200392	Marionette	INFO	Listening on port 56865
[task 2022-09-06T14:06:40.442Z] 14:06:40     INFO - .....
[task 2022-09-06T14:06:40.442Z] 14:06:40     INFO - TEST-OK | /screen-capture/permissions-policy-audio.https.sub.html | took 1936ms
[task 2022-09-06T14:06:40.442Z] 14:06:40     INFO - TEST-START | /screen-capture/permissions-policy-video.https.sub.html

Comment 1

[Intermittent Failures Robot]

1 failures in 3616 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1

Platform and build breakdown:

• linux1804-64-shippable-qr: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1789426&startday=2022-09-05&endday=2022-09-11&tree=all

Comment 2

[Intermittent Failures Robot]

3 failures in 3023 pushes (0.001 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1
• try: 2

Platform and build breakdown:

• android-em-7-0-x86_64-qr: 1
  • debug: 1
• android-em-7-0-x86_64-shippable-qr: 2
  • opt: 2

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1789426&startday=2022-09-12&endday=2022-09-18&tree=all

Comment 3

[Intermittent Failures Robot]

8 failures in 2909 pushes (0.003 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 2
• mozilla-central: 2
• mozilla-beta: 2
• try: 2

Platform and build breakdown:

• android-em-7-0-x86_64-lite-qr: 2
  • opt: 2
• android-em-7-0-x86_64-shippable-lite-qr: 3
  • opt: 3
• android-em-7-0-x86_64-shippable-qr: 2
  • opt: 2
• android-em-7-0-x86_64-qr: 1
  • debug: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1789426&startday=2022-09-19&endday=2022-09-25&tree=all

Comment 4

[Intermittent Failures Robot]

13 failures in 2041 pushes (0.006 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• try: 8
• mozilla-beta: 4
• autoland: 1

Platform and build breakdown:

• android-em-7-0-x86_64-shippable-lite-qr: 8
  • opt: 8
• android-em-7-0-x86_64-shippable-qr: 4
  • opt: 4
• android-em-7-0-x86_64-lite-qr: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1789426&startday=2022-09-26&endday=2022-10-02&tree=all

Comment 5

[Intermittent Failures Robot]

20 failures in 2449 pushes (0.008 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 4
• autoland: 12
• try: 1
• mozilla-central: 3

Platform and build breakdown:

• android-em-7-0-x86_64-shippable-lite-qr: 6
  • opt: 6
• android-em-7-0-x86_64-qr: 10
  • debug: 10
• android-em-7-0-x86_64-lite-qr: 4
  • opt: 4

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1789426&startday=2022-10-03&endday=2022-10-09&tree=all

Comment 6

[Natalia Csoregi [:nataliaCs]]

Update:

There have been 31 failures within the last 7 days:

• 1 failure on Windows 10 x64 2004 WebRender debug
• 1 failure on Android 7.0 x86-64 Shippable WebRender opt
• 2 failures on Android 7.0 x86-64 Lite WebRender Shippable opt
• 25 failures on Android 7.0 x86-64 WebRender debug\opt
• 2 failures on Android 7.0 x86-64 Lite WebRender opt

Recent failure log: https://treeherder.mozilla.org/logviewer?job_id=393307324&repo=autoland&lineNumber=3887

[task 2022-10-15T21:11:32.930Z] 21:11:32     INFO - TEST-PASS | /html/semantics/scripting-1/the-script-element/moving-between-documents/move-back-iframe-fetch-error-external-module.html | <script> load: Move fetch-error external module script to iframe move-back 
[task 2022-10-15T21:11:32.930Z] 21:11:32     INFO - TEST-UNEXPECTED-FAIL | /html/semantics/scripting-1/the-script-element/moving-between-documents/move-back-iframe-fetch-error-external-module.html | <script> error: Move fetch-error external module script to iframe move-back - assert_unreached: Script error evennt fired unexpectedly Reached unreachable code
[task 2022-10-15T21:11:32.930Z] 21:11:32     INFO - scriptOnError@http://web-platform.test:8000/html/semantics/scripting-1/the-script-element/moving-between-documents/resources/moving-between-documents-helper.js:122:79
[task 2022-10-15T21:11:32.930Z] 21:11:32     INFO - onerror@http://web-platform.test:8000/html/semantics/scripting-1/the-script-element/moving-between-documents/resources/moving-between-documents-iframe.py?result=null&inlineOrExternal=null&type=null&hasBlockingStylesheet=true&cache=0.029729466727584808:1:14
[task 2022-10-15T21:11:32.990Z] 21:11:32     INFO - TEST-OK | /html/semantics/scripting-1/the-script-element/moving-between-documents/move-back-iframe-fetch-error-external-module.html | took 20363ms

Edgar, as the owner of this component, can you assign this to someone?
Thank you.

Comment 7

[Intermittent Failures Robot]

30 failures in 3034 pushes (0.01 failures/push) were associated with this bug in the last 7 days.

This is the #30 most frequent failure this week.

** This failure happened more than 30 times this week! Resolving this bug is a high priority. **

** Try to resolve this bug as soon as possible. If unresolved for 2 weeks, the affected test(s) may be disabled. **

Repository breakdown:

• mozilla-central: 6
• autoland: 22
• mozilla-release: 2

Platform and build breakdown:

• android-em-7-0-x86_64-qr: 23
  • debug: 19
  • opt: 4
• android-em-7-0-x86_64-lite-qr: 2
  • opt: 2
• android-em-7-0-x86_64-shippable-qr: 2
  • opt: 2
• android-em-7-0-x86_64-shippable-lite-qr: 2
  • opt: 2
• windows10-64-2004-qr: 1
  • debug: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1789426&startday=2022-10-10&endday=2022-10-16&tree=all

Comment 8

[Intermittent Failures Robot]

9 failures in 2793 pushes (0.003 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 4
• autoland: 5

Platform and build breakdown:

• android-em-7-0-x86_64-qr: 9
  • debug: 9

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1789426&startday=2022-10-17&endday=2022-10-23&tree=all

Comment 9

[Intermittent Failures Robot]

16 failures in 3743 pushes (0.004 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 11
• mozilla-central: 3
• mozilla-release: 1
• try: 1

Platform and build breakdown:

• android-em-7-0-x86_64-qr: 15
  • debug: 15
• android-em-7-0-x86_64-shippable-qr: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1789426&startday=2022-10-24&endday=2022-10-30&tree=all

Comment 10

[Intermittent Failures Robot]

14 failures in 3626 pushes (0.004 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 5
• autoland: 8
• try: 1

Platform and build breakdown:

• android-em-7-0-x86_64-qr: 14
  • debug: 14

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1789426&startday=2022-10-31&endday=2022-11-06&tree=all

Comment 11

[Intermittent Failures Robot]

17 failures in 3445 pushes (0.005 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 6
• try: 1
• autoland: 10

Platform and build breakdown:

• android-em-7-0-x86_64-qr: 17
  • debug: 17

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1789426&startday=2022-11-07&endday=2022-11-13&tree=all

Comment 12

[Intermittent Failures Robot]

12 failures in 3589 pushes (0.003 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• try: 1
• autoland: 11

Platform and build breakdown:

• android-em-7-0-x86_64-qr: 12
  • debug: 12

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1789426&startday=2022-11-14&endday=2022-11-20&tree=all

Comment 14

[BugBot [:suhaib / :marco/ :calixte]]

https://wiki.mozilla.org/Bug_Triage#Intermittent_Test_Failure_Cleanup
For more information, please visit BugBot documentation.

Comment 15

[Intermittent Failures Robot]

2 failures were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-central: 2

Table

	asan	ccov	debug	no_variant	nofis	opt	tsan
linux1804-x86_64/opt				1	1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1789426&startday=2025-05-26&endday=2025-06-01&tree=all

Comment 16

[Intermittent Failures Robot]

2 failures were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1
• mozilla-beta: 1

Table

	!fission	no_variant	swgl	swgl+!fission
linux2404-x86_64/opt		2/30

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1789426&startday=2025-06-30&endday=2025-07-06&tree=all

Comment 17

[Intermittent Failures Robot]

1 failures were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 1

Table

	!fission	no_variant	swgl	swgl+!fission
linux2404-x86_64/opt		1/16

• x/y indicates test failures and total runs; only x means number of runs is unknown.

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1789426&startday=2025-07-28&endday=2025-08-03&tree=all

Comment 18

[Intermittent Failures Robot]

1 failures were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 1

Table

	!fission	no_variant	swgl	swgl+!fission
linux2404-x86_64/opt		1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1789426&startday=2025-08-11&endday=2025-08-17&tree=all

Comment 19

[Intermittent Failures Robot]

1 failures were associated with this bug in the last 7 days.

Repository breakdown:

• try: 1

Table

	!fission	no_variant	snapshot	swgl	swgl+!fission
linux2404-x86_64/opt		1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1789426&startday=2025-09-01&endday=2025-09-07&tree=all

Comment 20

[Intermittent Failures Robot]

1 failures were associated with this bug in the last 7 days.

Repository breakdown:

• mozilla-beta: 1

Table

	!fission	no_variant	snapshot	swgl	swgl+!fission
linux2404-x86_64/opt		1

For more details, see:

https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1789426&startday=2025-09-22&endday=2025-09-28&tree=all