Re: [author-guide] Character Entity References Chart

Henri Sivonen wrote:
> 
> On Jul 22, 2008, at 10:56, Henri Sivonen wrote:
> 
>> * It would break compatibility with existing content (IIRC MIT 
>> courseware, for example) that refers to a DTD that is not 
>> namespace-well-formed (i.e. has colons in PI targets).
> 
> 
> Here's a page from MIT:
> http://www-math.mit.edu/18.013A/MathML/chapter07/section01.xhtml

The question is whether such page should have some weight in making 
decisions when it works only in Firefox. It seems that this existing 
content breaks compatibility with majority of existing browsers at the 
first place.  ;-D

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