With the landing of bug 579943 an issue is now more visible as how it was before. For error pages we run reliable into timeouts. See also bug 503277 for more details about that problem. waitFor: Timeout exceeded for 'function () { return win.documentLoaded == true;}' So what shall we do for 1.4.2? Reverting the old functionality? Updating the tests to not use waitForPageLoad but waitForElement, or fixing bug 503277? Somehow win.documentLoaded turns into undefined after 2 or 3 iterations in the loop and never is set back to a valid value. Not sure why that happens. I would say it is important for the next beta release.