Modernizr/Modernizr — pull request #635 by travisp (2012-07-19 16:29:37+00:00)
Title: Add check to verify that enableClasses has been initialized. 

During custom builds of Modernizr that do not have the "add css class" functionality, the enableClasses variable is never initialized, causing errors to be raised on this line. This patch verifies that enableClasses is initialized before testing the value of enableClasses.