supporting both formats html5 & xhtml5 re: http://www.w3.org/html/wg/html5/#xhtml5

regarding: http://www.w3.org/html/wg/html5/#xhtml5

> For compatibility with existing content and prior specifications, this 
> specification describes two authoring formats: one based on XML 
> (referred to as XHTML5), and one using a custom format 
> <http://www.w3.org/html/wg/html5/#parsing> inspired by SGML (referred 
> to as HTML5). Implementations may support only one of these two 
> formats, although supporting both is encouraged.

I don't think that support for XHTML5 should be optional. Specifying 
that user-agents may support only one format, but supporting both is 
"encouraged" is insufficient and will only lead to a lack of support for 
XHTML5 like we had with XHTML1 [1]
 
We've been down this road before where support for application/xhtml+xml 
was only an "opt in" for user-agents. That's the main reason we have 
less than 100 valid XHTML websites today. [2]
People wont be able to use XHTML5 if there's no support for it.

Can this please be changed to:
[[
    .....Implementations MUST support these two formats.
]]


[1] http://bugs.webkit.org/show_bug.cgi?id=9677
[2] http://www.goer.org/Markup/TheXPhiles/


Dean Edridge

Received on Wednesday, 19 December 2007 11:37:15 UTC