frame "<!--frame1-->" - didStartProvisionalLoadForFrame
main frame - didFinishDocumentLoadForFrame
frame "<!--frame1-->" - didCommitLoadForFrame
frame "<!--frame1-->" - didFinishDocumentLoadForFrame
frame "<!--frame1-->" - didHandleOnloadEventsForFrame
main frame - didHandleOnloadEventsForFrame
frame "<!--frame1-->" - didFinishLoadForFrame
main frame - didFinishLoadForFrame
This test loads a secure iframe that loads an insecure image. We should *not* get a mixed content callback becase the main frame is HTTP and the image doesn't contaminate the child iframe's security origin with mixed content.