main frame - didStartProvisionalLoadForFrame
main frame - didCommitLoadForFrame
frame "f1" - didStartProvisionalLoadForFrame
main frame - didFinishDocumentLoadForFrame
main frame - didHandleOnloadEventsForFrame
frame "f1" - didFailProvisionalLoadWithError
main frame - didFinishLoadForFrame
This is a test of load callbacks. It is only useful inside the regression test tool.
It also assumes there is no web server running locally on port 54321.