main frame - didStartProvisionalLoadForFrame
main frame - didCommitLoadForFrame
main frame - didFinishDocumentLoadForFrame
ALERT: SUCCESS
main frame - willPerformClientRedirectToURL: data:text/html,%3Cbody%20onload='if(window.testRunner)testRunner.notifyDone();'%3EYou%20should%20have%20seen%20an%20alert. 
main frame - didHandleOnloadEventsForFrame
main frame - didFinishLoadForFrame
main frame - didStartProvisionalLoadForFrame
main frame - didCancelClientRedirectForFrame
main frame - didCommitLoadForFrame
main frame - didFinishDocumentLoadForFrame
main frame - didHandleOnloadEventsForFrame
main frame - didFinishLoadForFrame
You should have seen an alert.