main frame - DidStartNavigation
main frame - ReadyToCommitNavigation
main frame - didCommitLoadForFrame
frame "i" - BeginNavigation request to 'about:blank', http method GET
frame "i" - DidStartNavigation
frame "i" - ReadyToCommitNavigation
frame "i" - didCommitLoadForFrame
frame "i" - didFinishDocumentLoadForFrame
frame "i" - didHandleOnloadEventsForFrame
frame "i" - didFinishLoadForFrame
main frame - didFinishDocumentLoadForFrame
main frame - didHandleOnloadEventsForFrame
main frame - didFinishLoadForFrame