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Re: [XMLHttpRequest] update from the editor

From: Chris Lilley <chris@w3.org>
Date: Thu, 10 May 2007 19:39:19 +0200
Message-ID: <104951733.20070510193919@w3.org>
To: Bjoern Hoehrmann <derhoermi@gmx.net>
Cc: Maciej Stachowiak <mjs@apple.com>, "Web API WG (public)" <public-webapi@w3.org>

On Wednesday, May 9, 2007, 7:05:30 AM, Björn wrote:

BH> * Maciej Stachowiak wrote:
>>I'm also not sure of the benefit of letting the UA treat arbitrary  
>>other types as XML besides those listed. Modern XML MIME types should  
>>all be following the +xml convention. 

BH> It is false to assert modern XML MIME types follow the +xml convention.
BH> The most recent type proposal, application/vnd.fcsexpress.launchfile,
BH> does not, the reason being that the format uses XML now, but might not
BH> do so in the future. An ISO standard case whether going either way is
BH> sensible is application/fastinfoset, which certainly is a modern type.

Björn, your conclusion does not follow from your evidence. 

If you see foo/bar+xml, the +xml convention licenses you to assert that this is definitely XML.

If you see foo/bar, the +xml convention does not license you to conclude that it is *not* XML.

The media types that you mention, which are sometimes xml and sometimes not, are thus correctly labelled.

 Chris Lilley                    mailto:chris@w3.org
 Interaction Domain Leader
 Co-Chair, W3C SVG Working Group
 W3C Graphics Activity Lead
 Co-Chair, W3C Hypertext CG
Received on Thursday, 10 May 2007 17:39:41 UTC

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