Re: allowing sniffed type list to be extensible? No.

On Sun, May 31, 2009 at 10:26 AM, Larry Masinter <masinter@adobe.com> wrote:
> On Mon, Apr 6, 2009 at 1:17 PM, Anne van Kesteren <annevk@opera.com> wrote:
>> I sort of expect <video src> and <audio src> to do sniffing as well
>> (ignoring Content-Type altogether most likely). @font-face ignores
>> Content-Type as well because nobody had registered media types for fonts.
>
> If content-type sniffing is context dependent -- @font-face sniffs font
> types which img@src doesn't -- then the draft should be explicit about
> that, rather than suggesting font sniffing for image sources.

The draft does not suggest font sniffing for image sources.

> There's no justification for allowing video@src or audio@src to be
> sniffed. It just opens the door to more problems, and is not supported
> by the justification of backward-compatibility with deployed content --
> is there any other justification, besides someone "sort of expect"ing
> it?

The current draft does not sniff video or audio.  (Actually, we do
sniff MP3s because MP3s turn out to be widely mislabeled.)

Adam