[whatwg] HTML 5 video tag questions

Ian Hickson ian at hixie.ch
Tue Jul 28 16:53:02 PDT 2009

On Tue, 14 Jul 2009, Robert O'Callahan wrote:
> There's actually a fairly major related problem here. We hide the 
> fallback content by treating it as display:none. Currently Gecko has a 
> huge bug where a display:none plugin does not load/run. This works out 
> well for the video fallback case. If we fix that bug, then unless we do 
> some special magic, plugin-based video fallback will run and play audio 
> while the <video> element plays --- very bad.


Note: <iframe>s as <video> descendants still load, and if those pages 
contain <embed>, <object>, or <applet>s, they will load. Also, nested 
<video>s or <audio>s will load, including when in the fallback content of 
<object>. All I stopped is <object>, <embed>, and <applet>, when 
descendants of <video>, <audio>, or active <object>s.

Ian Hickson               U+1047E                )\._.,--....,'``.    fL
http://ln.hixie.ch/       U+263A                /,   _.. \   _\  ;`._ ,.
Things that are impossible just take longer.   `._.-(,_..'--(,_..'`-.;.'

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