CONSOLE WARNING: line 1: Application Cache API manifest selection is deprecated and will be removed in M85, around August 2020. See https://www.chromestatus.com/features/6192449487634432 for more details.
CONSOLE WARNING: line 4: Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/.
Test that a subframe without manifest gets picked by a relevant application cache that contains its resource.

Should say SUCCESS:

SUCCESS