Pangzitv wót zhouhaibing089

Pangzitv uses videojs library to play media in Firefox, however its implementation has a race condition where videojs runs autoSetup with an empty source and together with a placeholder media type. If videojs runs autoSetup first, it is going to show an error message like "No compatible source was found for this media.". This in turn sets the player in an error state so it can't recover by itself. This addon detects such issue automatically and reset its player if it ever occurs.