Re: ISSUE-4: Versioning, namespace URIs and MIME types


On Tue, 17 Feb 2009 17:18:39 +0100, Dan Connolly <> wrote:

> On Tue, 2009-02-17 at 03:35 +0000, Ian Hickson wrote:
> [...]
>> In conclusion: XHTML5 does not have a new conflict with XHTML2 even if
>> both use the same namespace. The conflict, insofar as there is one that
>> matters, already exists between XHTML1 and XHTML2, and exists  
>> irrespective
>> of XHTML5. I believe this issue to therefore be out of scope for the  
>> HTML5
>> specification, and do not propose to do anything about it (except for
>> changing the "relationship to XHTML2" section if they do indeed publish  
>> a
>> version of XHTML2 that reuses the same namespace).
> It seems they did publish such a draft:
> "Change XHTML 2.0 namespace to"
>  --

That's from "Issues". The normative text is:

   The start tag of the root element of the document must explicitly
   contain an xmlns declaration for the XHTML 2.0 namespace [XMLNS]. The
   namespace URI for XHTML 2.0 is defined to be

> I'm told it was by popular demand, so perhaps lots of demand
> in the other direction would get it changed.
> Myself, I'm content with the "ignore it and see if it
> goes away" approach.

Simon Pieters
Opera Software

Received on Tuesday, 17 February 2009 16:53:53 UTC