Harness status: OK

Found 22 tests

22 Pass
Pass	Returning a string must not cancel the event: CustomEvent, non-cancelable
Pass	Returning a string must not cancel the event: CustomEvent, cancelable
Pass	Returning false must not cancel the event, because it's coerced to the DOMString "false" which does not cancel CustomEvents: CustomEvent, cancelable
Pass	Returning a string must not cancel the event: BeforeUnloadEvent with type "click", cancelable
Pass	Returning null with a real iframe unloading
Pass	Returning undefined with a real iframe unloading
Pass	Returning  with a real iframe unloading
Pass	Returning false with a real iframe unloading
Pass	Returning true with a real iframe unloading
Pass	Returning 0 with a real iframe unloading
Pass	Returning null with a real iframe unloading; setting returnValue to foo
Pass	Returning undefined with a real iframe unloading; setting returnValue to foo
Pass	Returning  with a real iframe unloading; setting returnValue to foo
Pass	Returning false with a real iframe unloading; setting returnValue to foo
Pass	Returning true with a real iframe unloading; setting returnValue to foo
Pass	Returning 0 with a real iframe unloading; setting returnValue to foo
Pass	Returning undefined with a real iframe unloading; setting returnValue to 
Pass	Returning undefined with a real iframe unloading; calling preventDefault()
Pass	Returning undefined with a real iframe unloading; setting returnValue to foo; calling preventDefault()
Pass	Returning foo with a real iframe unloading; calling preventDefault()
Pass	Returning foo with a real iframe unloading; setting returnValue to foo; calling preventDefault()
Pass	Returning true with a real iframe unloading; setting returnValue to ; calling preventDefault()