NEW297477
REGRESSION(298691@main): [ macOS wk2, iOS ] imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-history-back-bfcache.html is a flaky failure 
https://bugs.webkit.org/show_bug.cgi?id=297477
Summary REGRESSION(298691@main): [ macOS wk2, iOS ] imported/w3c/web-platform-tests/n...
Bryan Medina
Reported 2025-08-15 13:59:25 PDT
imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-history-back-bfcache.html is a flaky failure on iOS and macOS wk2. HISTORY: https://results.webkit.org/?suite=layout-tests&test=imported%2Fw3c%2Fweb-platform-tests%2Fnavigation-api%2Fnavigate-event%2Fnavigate-history-back-bfcache.html TEXT DIFF: --- /Volumes/Data/worker/Apple-Sonoma-Release-AppleSilicon-WK2-Tests/build/layout-test-results/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-history-back-bfcache-expected.txt +++ /Volumes/Data/worker/Apple-Sonoma-Release-AppleSilicon-WK2-Tests/build/layout-test-results/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-history-back-bfcache-actual.txt @@ -1,3 +1,5 @@ -PASS navigate event should fire when traversing to a bfcache hit +Harness Error (TIMEOUT), message = null +TIMEOUT navigate event should fire when traversing to a bfcache hit Test timed out + TEXT DIFF URL: https://build.webkit.org/results/Apple-Sonoma-Release-AppleSilicon-WK2-Tests/298753@main%20(9758)/imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-history-back-bfcache-diff.txt
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Radar WebKit Bug Importer
Comment 1 2025-08-15 13:59:39 PDT
<rdar://problem/158434206>
Bryan Medina
Comment 2 2025-08-15 14:04:52 PDT
I was able to reproduce the text failure locally on my device running iOS 18 Simulator Release ToT using the following command: run-webkit-tests imported/w3c/web-platform-tests/navigation-api/navigate-event/navigate-history-back-bfcache.html --ios-simulator
Bryan Medina
Comment 3 2025-08-15 14:13:59 PDT
It seems to me that the regression point is at 298691@main, since that is where the test started failing and when changes were made to Navigation API.
EWS
Comment 4 2025-08-15 14:15:30 PDT
Test gardening commit 298778@main (cd2ddb51c2d4): <https://commits.webkit.org/298778@main> Reviewed commits have been landed. Closing PR #49476 and removing active labels.
Basuke Suzuki
Comment 5 2025-09-03 18:43:56 PDT
Pull request: https://github.com/WebKit/WebKit/pull/50277
EWS
Comment 6 2025-09-04 17:35:36 PDT
Committed 299594@main (048951b7d112): <https://commits.webkit.org/299594@main> Reviewed commits have been landed. Closing PR #50277 and removing active labels.
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