The following layout test is flaky on High Sierra WK2 http/tests/storageAccess/request-and-grant-access-then-navigate-should-not-have-access.html Probable cause: Test was supposedly fixed in https://trac.webkit.org/changeset/228109/webkit however it seems this was not the case. Flakiness Dashboard: https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=http%2Ftests%2FstorageAccess%2Frequest-and-grant-access-then-navigate-should-not-have-access.html https://build.webkit.org/results/Apple%20High%20Sierra%20Release%20WK2%20(Tests)/r229579%20(3426)/results.html https://build.webkit.org/builders/Apple%20High%20Sierra%20Release%20WK2%20(Tests)/builds/3426 Diff --- /Volumes/Data/slave/highsierra-release-tests-wk2/build/layout-test-results/http/tests/storageAccess/request-and-grant-access-then-navigate-should-not-have-access-expected.txt +++ /Volumes/Data/slave/highsierra-release-tests-wk2/build/layout-test-results/http/tests/storageAccess/request-and-grant-access-then-navigate-should-not-have-access-actual.txt @@ -3,11 +3,4 @@ On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". -PASS document.cookie == -PASS Storage access was granted. -PASS document.cookie == cookieSetClientSideAfterGrantedStorageAccess=value; firstPartyCookie=value -PASS No storage access. document.cookie == , cookies seen server-side == "No cookies" -PASS successfullyParsed is true -TEST COMPLETE -