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diff --git a/source/bower_components/modernizr/feature-detects/mathml.js b/source/bower_components/modernizr/feature-detects/mathml.js
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+// MathML
+// http://www.w3.org/Math/
+// By Addy Osmani
+// Based on work by Davide (@dpvc) and David (@davidcarlisle)
+// in https://github.com/mathjax/MathJax/issues/182
+
+Modernizr.addTest('mathml', function(){
+ var hasMathML = false;
+ if ( document.createElementNS ) {
+ var ns = "http://www.w3.org/1998/Math/MathML",
+ div = document.createElement("div");
+ div.style.position = "absolute";
+ var mfrac = div.appendChild(document.createElementNS(ns,"math"))
+ .appendChild(document.createElementNS(ns,"mfrac"));
+ mfrac.appendChild(document.createElementNS(ns,"mi"))
+ .appendChild(document.createTextNode("xx"));
+ mfrac.appendChild(document.createElementNS(ns,"mi"))
+ .appendChild(document.createTextNode("yy"));
+ document.body.appendChild(div);
+ hasMathML = div.offsetHeight > div.offsetWidth;
+ }
+ return hasMathML;
+}); \ No newline at end of file