PASS Image.toString() is '[object ImageConstructor]'
PASS ImageData.toString() is '[object ImageDataConstructor]'
PASS KeyboardEvent.toString() is '[object KeyboardEventConstructor]'
+PASS MediaController.toString() is '[object MediaControllerConstructor]'
PASS MediaError.toString() is '[object MediaErrorConstructor]'
PASS MediaList.toString() is '[object MediaListConstructor]'
PASS MessageChannel.toString() is '[object MessageChannelConstructor]'