The following layout test is flaky on macOS and iOS imported/w3c/web-platform-tests/service-workers/service-worker/fetch-canvas-tainting.https.html Probable cause: Unknown. Flakiness Dashboard: https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=imported%2Fw3c%2Fweb-platform-tests%2Fservice-workers%2Fservice-worker%2Ffetch-canvas-tainting.https.html The diff shows that this is a test harness timeout.
Marked test as flaky in https://trac.webkit.org/changeset/227262/webkit
<rdar://problem/36681263>
(In reply to Ryan Haddad from comment #1) > Marked test as flaky in https://trac.webkit.org/changeset/227262/webkit Ryan, DumpJSConsoleLogInStdErr is important to keep for these tests as otherwise they will be super flaky. I will mark them as [Pass Failure DumpJSConsoleLogInStdErr] in bug 181975. That will allow capturing actual flakiness like timeouts much more easily.