Once we had canvas capturing implemented, adding videos in the loop was a matter of time. The good news is that the latest recorder implementation now supports capturing video elements.
Of course, the same limitations with capturing canvases, apply in this case as well. In order
to capture videos retreived from other origins, the video has to have the
set, and the appropriate CORS headers configured on the origin server. For more info,
see our FAQs section.
Here is a sample recording from YouTube captured with the Firefox add-on:
And here is another one from Daily Motion: