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

From: Chris Chiasson <chris@chiasson.name>
Date: Tue, 29 May 2007 20:45:53 -0500
Message-ID: <acbec1a40705291845h3bda3338o3ab4843afbdb0999@mail.gmail.com>
To: "Jacques Distler" <distler@golem.ph.utexas.edu>
Cc: "Waters, Michael, Springer US" <Mike.Waters@springer.com>, "Robert Miner" <robertm@dessci.com>, R.W.Kaye@bham.ac.uk, www-math@w3.org, "William F. Hammond" <hammond@math.albany.edu>

It seems like we are just treating symptoms of a larger problem, which is:
How should content negotiation be handled when some of the XML
dialects available (MathML, SVG, etc) are not supported by the client?
Is there a working group solving this problem?

On 5/29/07, Jacques Distler <distler@golem.ph.utexas.edu> wrote:
>
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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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-- 
http://chris.chiasson.name/
Received on Wednesday, 30 May 2007 01:46:14 GMT

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