The following layout test is a flaky failure on iOS and macOS imported/w3c/web-platform-tests/service-workers/service-worker/fetch-event-within-sw.https.html Probable cause: Unknown, this test has been flaky for a while. 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-event-within-sw.https.html --- /Volumes/Data/slave/sierra-debug-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/service-workers/service-worker/fetch-event-within-sw.https-expected.txt +++ /Volumes/Data/slave/sierra-debug-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/service-workers/service-worker/fetch-event-within-sw.https-actual.txt @@ -1,4 +1,5 @@ +CONSOLE MESSAGE: Cache API operation failed: Failed writing data to the file system -PASS Service worker intercepts requests from window +FAIL Service worker intercepts requests from window promise_test: Unhandled rejection with value: object "TypeError: Failed writing data to the file system" PASS Service worker does not intercept fetch/cache requests within service worker