Re: Distributed Extensibility

Sam Ruby wrote:
> 
> Dan Connolly wrote:
>> On Thu, 2007-08-02 at 11:16 -0400, Sam Ruby wrote:
>>> Original here:
>>> http://intertwingly.net/blog/2007/08/02/HTML5-and-Distributed-Extensibility 
>>>
>> [...]
>>> XML permits an alternate syntax, namely default namespaces.  In 
>>> certain circles, such a syntax is very popular.  Regrettably, 
>>> allowing such a syntax would pose problems for back level user 
>>> agents, and therefore must be disallowed in the HTML5 “custom format”.
>>
>> I'm not familiar with those problems. I'd like more details;
>> maybe even test cases.
> 
> Testcase:
> 
> http://intertwingly.net/stories/2007/08/13/testcase.html
> 
> View it both in IE and in a browser that supports XHTML and SVG. Compare 
> the title bars.
> 
> Now imagine if I had used the script element:
> 
> http://www.w3.org/TR/SVG11/script.html
> 
> I believe that for backwards compatibility we need to ensure that not 
> only doesn't any extension use a local-name that may have previously 
> been used, but also doesn't use any local-name that may every be used in 
> potential future revisions of HTML.

Oopsie.  s/local-name/node name/g.

- Sam Ruby