main frame - didFinishDocumentLoadForFrame
frame "<!--frame1-->" - didStartProvisionalLoadForFrame
frame "<!--frame1-->" - didCommitLoadForFrame
frame "<!--frame1-->" - didFinishDocumentLoadForFrame
frame "<!--frame1-->" - didHandleOnloadEventsForFrame
frame "<!--frame1-->" - didFinishLoadForFrame
frame "<!--frame1-->" - willPerformClientRedirectToURL: resources/fail.html
main frame - didHandleOnloadEventsForFrame
main frame - didFinishLoadForFrame
frame "<!--frame1-->" - didStartProvisionalLoadForFrame
frame "<!--frame1-->" - didCancelClientRedirectForFrame
frame "<!--frame1-->" - didFailProvisionalLoadWithError
frame "<!--frame1-->" - didStartProvisionalLoadForFrame
frame "<!--frame1-->" - didCommitLoadForFrame
frame "<!--frame1-->" - didFinishDocumentLoadForFrame
frame "<!--frame1-->" - willPerformClientRedirectToURL: x-apple-content-filter://mock-unblock
frame "<!--frame1-->" - didHandleOnloadEventsForFrame
frame "<!--frame1-->" - didFinishLoadForFrame
frame "<!--frame1-->" - didCancelClientRedirectForFrame


--------
Frame: '<!--frame1-->'
--------
PASS

============== Back Forward List ==============
curr->  (file test):contentfiltering/block-after-will-send-request-then-deny-unblock.html  **nav target**
            about:blank (in frame "<!--frame1-->")
===============================================