- From: Ian Hickson <ian@hixie.ch>
- Date: Tue, 30 Jun 2009 11:11:05 +0000 (UTC)
- To: Simon Pieters <simonp@opera.com>, Jamie Lokier <jamie@shareable.org>, Anne van Kesteren <annevk@opera.com>
- Cc: Robert O'Callahan <robert@ocallahan.org>, Adam Barth <w3c@adambarth.com>, Larry Masinter <masinter@adobe.com>, "ietf-http-wg@w3.org" <ietf-http-wg@w3.org>, public-html@w3.org
On Mon, 15 Jun 2009, Simon Pieters wrote: > On Fri, 12 Jun 2009 20:55:29 +0200, Ian Hickson <ian@hixie.ch> wrote: > > > I've updated HTML5 to require that Content-Types of types that are not > > supported cause the resource to be ignored (even if it would otherwise > > be supported). > > If a UA does not know what is not supported, is it reasonable to > consider anything that is not video/* or audio/* to be not supported? The way the spec is phrased, yes. On Tue, 16 Jun 2009, Jamie Lokier wrote: > > For video, content negotiation is probably going to end up being done in > Javascript rather than HTTP, or by User-Agent recognition. HTML5 actually has a built-in way of doing fallback for <video>. On Tue, 16 Jun 2009, Anne van Kesteren wrote: > > Still, if the user agent does a request, should it abort the request if > the media type of the response is not video/* or audio/*? Assuming the type is one "that the user agent knows it cannot render", yes. On Tue, 16 Jun 2009, Jamie Lokier wrote: > > I'm thinking if the response is an animated GIF, of type image/gif, why > forbid a <video> element from being allowed to play it as a video. I believe the spec allows this. > I'm also thinking, why forbid other image/* types from being played as > static videos. After all, sometimes single-frame video/* files (such as > an MPEG single I-Frame) are sometimes created for this purpose on real > video players. It would seem odd to allow the display of single-frame > video files, but forbid image/* files from behaving exactly the same > way. I believe a browser is allowed to do this as currently written. -- Ian Hickson U+1047E )\._.,--....,'``. fL http://ln.hixie.ch/ U+263A /, _.. \ _\ ;`._ ,. Things that are impossible just take longer. `._.-(,_..'--(,_..'`-.;.'
Received on Tuesday, 30 June 2009 11:11:42 UTC