[Webkit-unassigned] [Bug 100626] Support semantics annotation-xml elements

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=100626





--- Comment #3 from Frédéric Wang <fred.wang at free.fr>  2012-10-29 09:59:27 PST ---
Gecko currently displays the first child of semantics and hides the others. This is not the behavior defined in the spec but it works in most cases (i.e. when people use presentation MathML as the first child). This is expected to change when

https://bugzilla.mozilla.org/show_bug.cgi?id=745131

is fixed. According to David Carlisle, the right way to put foreign content in MathML is to include them in <mtext>'s as in the demo page

http://www.mozilla.org/projects/mathml/demo/extras.html

At least I think it is how MathML3/HTML5 defines it and the page above should validate with

http://validator.w3.org/nu/

(except that "title" is not a valid MathML attribute). I don't think there is an official mechanism to include foreign content in XHTML 1.1 other than this <semantics> technique that validates with the DTD-based validator using

http://www.w3.org/TR/XHTMLplusMathMLplusSVG/

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