http/tests/contentfiltering/block-after-redirect.html has started to frequently fail yesterday night, likely because of bug 148506. https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=http%2Ftests%2Fcontentfiltering%2Fblock-after-redirect.html
Created attachment 260526 [details] Patch
Committed r189289: <http://trac.webkit.org/changeset/189289>