<?xml version="1.0"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1 plus MathML 2.0//EN" "http://www.w3.org/TR/MathML2/dtd/xhtml-math11-f.dtd" [ <!ENTITY mathml "http://www.w3.org/1998/Math/MathML"> ]> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Testcase bug - Evil mrow:hover testcase crashes Mozilla</title> <style type="text/css"> #h:hover{display:block;} </style> </head> <body onload="document.getElementById('mrow').setAttribute('id', 'h');"> <math mode="display" xmlns="http://www.w3.org/1998/Math/MathML"> <mover> <mrow id="mrow">hovering over this should not crash Mozilla</mrow> <mover> <mo>10</mo> <mrow>times</mrow> </mover> </mover> </math> </body> </html>