Re: Registration of media type application/xhtml-voice+xml

"Jonny Axelsson" <jax@opera.com> Wed, 03 August 2005 11:17 UTC

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Date: Wed, 03 Aug 2005 13:14:49 +0200
From: "Jonny Axelsson" <jax@opera.com>
To: "Bjoern Hoehrmann" <derhoermi@gmx.net>, "Gerald McCobb" <mccobb@us.ibm.com>
Subject: Re: Registration of media type application/xhtml-voice+xml
Cc: ietf-types@iana.org, ietf-xml-mime@imc.org
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On Tue, 02 Aug 2005 10:14:02 +0200, Bjoern Hoehrmann <derhoermi@gmx.net>;  
wrote:

> Well, application/xhtml+xml has a profile parameter to indicate
> specific profiles such as XHTML+Voice; why is a new XHTML+Voice
> media type preferable here?

This is only semi-related to this question, but profile parameters are  
unreliable. OMA did something similar with a Mobile Profile of XHTML (an  
almost pure subset of XHTML), using the XHTML content type. As a  
consequence we tested parameters and found them somewhat unreliable. I  
don't remember the details but clients didn't always lop the parameters  
off, servers didn't always serve them.

I guess this just goes to show that if a feature is unused long enough  
interoperability suffers (that it is unused may also indicate that this  
wasn't such a good idea but that is another debate).


-- 
Jonny Axelsson, Core Technology, Opera Software ASA