For example, load: http://test-results.appspot.com/dashboards/flakiness_dashboard.html#master=ChromiumWebkit&testType=browser_tests&tests=ExtensionOverrideTest.ShouldCleanUpDuplicateEntries My guess is that any links with the "master" parameter break because we do funky remapping of master to builder. I probably broke this a couple months ago. :(
Looks like this got fixed at some point.