Bug 261341

requestidlecallback/requestidlecallback-in-page-cache.html This test is a flaky text failure/timeout on macOS wk2. HISTORY: https://results.webkit.org/?suite=layout-tests&test=requestidlecallback%2Frequestidlecallback-in-page-cache.html TEXT DIFF: PASS event.persisted is true PASS logsA.length is 0 PASS logsB.length is 0 -PASS logsA.length is 4 -PASS logsA.join(", ") is "A1, A2, A3, A4" -PASS logsB.length is 3 -PASS logsB.join(", ") is "B1, B2, B3" +FAIL logsA.length should be 4. Was 0. +FAIL logsA.join(", ") should be A1, A2, A3, A4. Was . +FAIL logsB.length should be 3. Was 0. +FAIL logsB.join(", ") should be B1, B2, B3. Was . PASS successfullyParsed is true +Some tests failed. TEST COMPLETE DIFF URL: https://build.webkit.org/results/Apple-Ventura-Release-WK2-Tests/266889@main%20(3150)/requestidlecallback/requestidlecallback-in-page-cache-pretty-diff.html REPRODUCTION: I was able to reproduce this issue on macOS Ventura (13.5, 22G74/arm64) ToT using the following command: run-webkit-tests --verbose --clobber-old-results --iterations 10000 --child-processes 10 -f --exit-after-n-failures 1 requestidlecallback/requestidlecallback-in-page-cache.html REGRESSION: I was able to identify a regression point at 266877@main, as this issue did not reproduce before then and changes at that point appear directly related to this issue. NOTE: This test is much more flaky in my local testing than on the bots.