mathjax/MathJax — pull request #673 by thomastan (2013-11-21 08:30:48+00:00)
Title: Regression fix for IE6-8 compatability in mml2jax.js

Before IE9, getElementsByTagName() returns a nodeList instead of an array as required by push.apply(array, array). This fixes the problem by converting the nodeList to an array.