Modernizr/Modernizr — pull request #826 by mikkotikkanen (2013-02-22 12:35:37+00:00)
Title: Fixed iFrame problem with polyfills

Testing for window.getComputedStyle and then using getComputedStyle borks things up when window is redefined (to point to iframe for example) and a getComputedStyle polyfill is used within the iframe (the iframe has the getComputedStyle while the current window namespace doesn't).