Re: comments on draft-barth-mime-sniffing

Ian Hickson wrote:
>> Or is the relevant text somewhere in the
>> http://www.whatwg.org/specs/web-apps/current-work/multipage/video.html#concept-media-load-resource
>> section?
> 
> That is the relevant algorith, yes; specifically the second and third 
> cases in the first set of cases in the list in step 3.

OK, then agreed that this allows sniffing of the video data if the type 
is not provided.

Note that Gecko, at least, sniffs all HTTP responses without a 
Content-Type header, and after that treats them all effectively as 
metadata-provided.  It sounds like doing that is fundamentally 
incompatible with this specification, though, unless we teach our 
sniffer to recognize video/audio types by data, not just by extension...

-Boris