[whatwg] <video> application/octet-stream

Philip Jägenstedt philipj at opera.com
Thu Jul 22 03:30:03 PDT 2010

On Thu, 22 Jul 2010 11:22:45 +0200, Henri Sivonen <hsivonen at iki.fi> wrote:

> Chris Double wrote:
>> As I mentioned in a previous email, the sniffing could result in a
>> reasonable amount of data being consumed. I'm sure people who run
>> sites that share HTML 5 video would appreciate browsers not consuming
>> data bandwidth to sniff files that they've already specified as being
>> something the browser doesn't support.
> I think the solution to this concern is to allow authors of  
> bandwidth-sensitive to specify the type attribute on <source> or the  
> Content-Type header on the HTTP response to say something other than  
> application/octet-stream or text/plain. For best performance, authors  
> should use the type attribute in multi-<source> cases anyway.

Chrome and Safari ignore the MIME type altogether, in my opinion if we  
align with that we should do it full out, not just by adding text/plain to  
the whitelist, as that would either require (a) canPlayType("text/plain")  
to return "maybe" or (b) different code paths for checking the MIME type  
in Content-Type and for canPlayType.

Philip Jägenstedt
Core Developer
Opera Software

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