The following layout test is failing on macOS imported/w3c/web-platform-tests/FileAPI/url/sandboxed-iframe.html Probable cause: This test is failing since it was imported in https://trac.webkit.org/changeset/230330/webkit#file143 Flakiness Dashboard: https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=imported%2Fw3c%2Fweb-platform-tests%2FFileAPI%2Furl%2Fsandboxed-iframe.html --- /Volumes/Data/slave/sierra-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/FileAPI/url/sandboxed-iframe-expected.txt +++ /Volumes/Data/slave/sierra-release-tests-wk2/build/layout-test-results/imported/w3c/web-platform-tests/FileAPI/url/sandboxed-iframe-actual.txt @@ -1,4 +1,5 @@ CONSOLE MESSAGE: line 1714: SecurityError: Sandbox access violation: Blocked a frame at "http://localhost:8800" from accessing a frame at "null". The frame being accessed is sandboxed and lacks the "allow-same-origin" flag. +CONSOLE MESSAGE: line 67: XMLHttpRequest cannot load blob:null/7c9635f7-5ee0-4a9e-9924-aba22c05aee5. Cross origin requests are only supported for HTTP. FAIL FileAPI Test: Verify behavior of Blob URL in unique origins SecurityError: Sandbox access violation: Blocked a frame at "http://localhost:8800" from accessing a frame at "null". The frame being accessed is sandboxed and lacks the "allow-same-origin" flag.
Removed the pass expectation for mac-wk2 in https://trac.webkit.org/r230343 Not sure if this just needs a rebaseline.
Removing the pass expectation looks like the correct fix. I don't think a rebaseline will help since the id in the blob url changes with each run.