Then why was TenFourTube (as seen in the video) not playing in the Nokia website? It was loading the modern m.youtube.com website...
and the video did play. what was going on in that video?
Hmm... Maybe it originally did, but then switched over to the older design later on. However, it still worked.
In any case, it switched back now, and as previously stated, there is no play button, or any interface over the empty black box.