1917741 - Intermittent accessible/tests/browser/caching_granularity/browser_viewport_domain.js | viewport is not present in cache -

Status: RESOLVED FIXED

(Core :: Disability Access APIs, defect, P5)

Description

[Treeherder Bug Filer]

Filed by: abutkovits [at] mozilla.com
Parsed log: https://treeherder.mozilla.org/logviewer?job_id=473587515&repo=autoland
Full log: https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/OvGg2UJdQAmQkIZQtNP2tg/runs/0/artifacts/public/logs/live_backing.log
Reftest URL: https://hg.mozilla.org/mozilla-central/raw-file/tip/layout/tools/reftest/reftest-analyzer.xhtml#logurl=https://firefox-ci-tc.services.mozilla.com/api/queue/v1/task/OvGg2UJdQAmQkIZQtNP2tg/runs/0/artifacts/public/logs/live_backing.log&only_show_unexpected=1

---

[task 2024-09-10T00:34:17.744Z] 00:34:17     INFO - TEST-PASS | accessible/tests/browser/caching_granularity/browser_viewport_domain.js | IFRAME is in the same process. - 
[task 2024-09-10T00:34:17.745Z] 00:34:17     INFO - Buffered messages finished
[task 2024-09-10T00:34:17.746Z] 00:34:17     INFO - TEST-UNEXPECTED-FAIL | accessible/tests/browser/caching_granularity/browser_viewport_domain.js | viewport is not present in cache - 
[task 2024-09-10T00:34:17.746Z] 00:34:17     INFO - Stack trace:
[task 2024-09-10T00:34:17.746Z] 00:34:17     INFO - chrome://mochikit/content/browser-test.js:test_ok:1597
[task 2024-09-10T00:34:17.746Z] 00:34:17     INFO - chrome://mochitests/content/browser/accessible/tests/browser/caching_granularity/head.js:testAttributeCachePresence:84
[task 2024-09-10T00:34:17.746Z] 00:34:17     INFO - chrome://mochitests/content/browser/accessible/tests/browser/caching_granularity/head.js:testCachingPerPlatform:135
[task 2024-09-10T00:34:17.746Z] 00:34:17     INFO - chrome://mochitests/content/browser/accessible/tests/browser/caching_granularity/browser_viewport_domain.js:null:13
[task 2024-09-10T00:34:17.746Z] 00:34:17     INFO - chrome://mochitests/content/browser/accessible/tests/browser/shared-head.js:accessibleTask/</<:602
[task 2024-09-10T00:34:17.746Z] 00:34:17     INFO - resource://testing-common/BrowserTestUtils.sys.mjs:withNewTab:121
[task 2024-09-10T00:34:17.747Z] 00:34:17     INFO - chrome://mochitests/content/browser/accessible/tests/browser/shared-head.js:accessibleTask/<:521
[task 2024-09-10T00:34:17.747Z] 00:34:17     INFO - chrome://mochikit/content/browser-test.js:handleTask:1145
[task 2024-09-10T00:34:17.747Z] 00:34:17     INFO - chrome://mochikit/content/browser-test.js:_runTaskBasedTest:1217
[task 2024-09-10T00:34:17.747Z] 00:34:17     INFO - chrome://mochikit/content/browser-test.js:Tester_execTest:1358
[task 2024-09-10T00:34:17.747Z] 00:34:17     INFO - chrome://mochikit/content/browser-test.js:nextTest/<:1134
[task 2024-09-10T00:34:17.747Z] 00:34:17     INFO - chrome://mochikit/content/tests/SimpleTest/SimpleTest.js:SimpleTest.waitForFocus/<:1058
[task 2024-09-10T00:34:17.747Z] 00:34:17     INFO - Querying viewport in cache
[task 2024-09-10T00:34:17.748Z] 00:34:17     INFO - TEST-PASS | accessible/tests/browser/caching_granularity/browser_viewport_domain.js | viewport is present in the cache - 

Comment 1

[Intermittent Failures Robot]

1 failures in 4448 pushes (0.0 failures/push) were associated with this bug in the last 7 days.

Repository breakdown:

• autoland: 1

Platform and build breakdown:

• macosx1015-64-qr: 1
  • opt: 1

For more details, see:
https://treeherder.mozilla.org/intermittent-failures/bugdetails?bug=1917741&startday=2024-09-09&endday=2024-09-15&tree=all

Comment 2

[Iulian Moraru]

This started failing on tier 1: https://treeherder.mozilla.org/logviewer?job_id=474526622&repo=autoland&lineNumber=2078

Comment 3

[Iulian Moraru]

Hi Nathan! Can you please take a look at this?
Thank you!

Comment 4

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

Set release status flags based on info from the regressing bug 1794974

:nlapre, since you are the author of the regressor, bug 1794974, could you take a look?

For more information, please visit BugBot documentation.

Comment 5

[Nathan LaPré]

Will do, thanks. I think this should be a pretty simple fix to the tests. Looks like it's akin to the problem described in bug 1916578. I'll put together a fix shortly.

Comment 6

[Nathan LaPré]

Attachment: Bug 1917741: Restrict viewport cache domain check on macOS, r?jamie,morgan

Per Bug 1916578, some cache domains may be present before the document is
finished loading. This can be triggered by platform-level code event handling.
This issue makes cache absence checks unreliable on macOS. We are intermittently
seeing failures on macOS where viewport is cached before doc load, despite not
explicitly requesting it. As we've done with other such issues, this revision
excludes the cache absence check on macOS.

Comment 7

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/f63327f4a744
Restrict viewport cache domain check on macOS, r=Jamie

Comment 8

[pstanciu]

https://hg.mozilla.org/mozilla-central/rev/f63327f4a744