LayoutTest fetch/closing-while-fetching-blob.html is failing (reporting FailureNotTested) https://build.webkit.org/results/Apple%20iOS%2010%20Simulator%20Release%20WK2%20(Tests)/r217444%20(1760)/results.html https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=fetch%2Fclosing-while-fetching-blob.html
HTML parsing competes with navigation: window.location = "about:blank"; Looks like this should be an async test, to make sure that navigation always happens.