frame "" - didStartProvisionalLoadForFrame main frame - didFinishDocumentLoadForFrame frame "" - didCommitLoadForFrame frame "" - didFinishDocumentLoadForFrame frame "" - didHandleOnloadEventsForFrame main frame - didHandleOnloadEventsForFrame frame "" - didFinishLoadForFrame main frame - didFinishLoadForFrame This test loads a secure iframe that loads a data URL script. We should *not* trigger a mixed content callback because the data URL cannot be corrupted by an active network attacker.