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Re: MathML won't display (or: what triggers mathplayer behaviour?)

From: Jacques Distler <distler@golem.ph.utexas.edu>
Date: Tue, 29 May 2007 17:07:14 -0500
Message-Id: <9634A127-5EAA-4803-91FB-1BCD6032BB6E@golem.ph.utexas.edu>
Cc: Robert Miner <robertm@dessci.com>, R.W.Kaye@bham.ac.uk, www-math@w3.org, "William F. Hammond" <hammond@math.albany.edu>
To: "Waters, Michael, Springer US" <Mike.Waters@springer.com>

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On May 29, 2007, at 1:59 PM, Waters, Michael, Springer US wrote:

> Just now I confirmed that observation by alternately adding and  
> removing a "AddCharset UTF-8" directive to Apache's httpd.conf  
> file. By adding that 1 directive, stopping/starting the server,  
> >>AND<< removing the local browser cache, not just refreshing the  
> page, I was able to prevent the triggering of MathPlayer on the  
> simplest MathML demo page, thereby showing the XML tree. To re- 
> enable the correct MathPlayer behavior, I removed the directive,  
> stoppped/started the server, >>AND<< removed the local browser  
> cache, going back to the default application/xhtml+xml MIME type  
> for .xhtml and .xht files.

OK. I give up, then.

IE+MathPlayer gets

      Content-Type: application/xhtml+xml

All XHTML-UA's get

     Content-Type: application/xhtml+xml; charset=UTF-8

HTML-UA's (including IE without MathPlayer) get

     Content-Type: text/html; charset=UTF-8

Instiki pages are  served with a

     <meta http-equiv="Content-Type" content="text/html;  
charset=UTF-8" />

This is ignored by XHTML-UA's. They get the encoding from the HTTP  
headers. (For present purposes, I am avoiding an <?xml?> declaration,  
so as not to have to deal with IE in quirks mode.)

IE+MathPlayer is an HTML-UA masquerading as an XHTML-UA. So it will,  
presumably, get the encoding from the <meta> element.

Hopefully, that will suffice.

Jacques
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Received on Tuesday, 29 May 2007 22:08:04 GMT

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