Test required arguments of URL object. On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". PASS URL.createObjectURL() threw exception TypeError: Failed to execute 'createObjectURL' on 'URL': 1 argument required, but only 0 present.. PASS URL.revokeObjectURL() threw exception TypeError: Failed to execute 'revokeObjectURL' on 'URL': 1 argument required, but only 0 present.. PASS successfullyParsed is true TEST COMPLETE