Steps: 1. Play a video element 2. Go fullscreen 3. Exit fullscreen 4. Close window. The video keeps playing (or, at least it did when I tried this on cuteoverload.com with Click To Flash installed).
May be related to bug 30119
Created attachment 41047 [details] Patch
Comment on attachment 41047 [details] Patch > + QTMovieView *movieView = [[self fullscreenWindow] movieView]; > + [movieView setMovie:nil]; I would have done this on a single line without a local variable. I would have included a comment, since it's not obvious that the reason this is critical is that it stops the movie from playing. Further, the comment could clarify whether this is a workaround for a QTMovieView bug or if it's simply a subtle aspect of the design of QTMovieView, as well.
I filed <rdar://problem/7295070> on the underlying problem.
http://trac.webkit.org/changeset/49443