It seems my YouTube, standard video URL, is not playing in the completed Extension. I used a WIDGET -> Movie Player -> added in the URL where asked.
Sorry for the confusion.
Movie Widget can play ".flv" type movie. It can play online(http://www.TheonlinevideoURL.flv" and offline resources.
The known bug I mentioned above is "HTML Widget doesn't support online video".
thanks
Xiaoyan
North America
Europe, Middle East and Africa
Asia Pacific