Open the above url. You'll hear the sound of the video clip, but you won't see anything until you resize the window. Happens in the latest nightly but not Safari on 10.4.5. Putting this into the Plug-ins component for now.
<rdar://problem/4556762>
Created attachment 8548 [details] patch to fix
Comment on attachment 8548 [details] patch to fix r=me
Fix landed to TOT WebKit, revision 14611.