http/tests/xmlhttprequest/methods-async.html is flaky on Yosemite Release WK2 Frequently timing out: <http://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=http%2Ftests%2Fxmlhttprequest%2Fmethods-async.html> Most recent run with timeout: <https://build.webkit.org/builders/Apple%20Yosemite%20Release%20WK2%20(Tests)/builds/10218> Results: <https://build.webkit.org/results/Apple%20Yosemite%20Release%20WK2%20(Tests)/r192919%20(10218)/results.html>
Marked as flaky on Yosemite WK2 in <https://trac.webkit.org/r192927>
It would not hurt to modify this test so that it calls testRunner.notifyDone() in error cases.