// https://github.com/Modernizr/Modernizr/issues/615 // documentMode is needed for false positives in oldIE, please see issue above Modernizr.addTest('cssfilters', function() { var el = document.createElement('div'); el.style.cssText = Modernizr._prefixes.join('filter' + ':blur(2px); '); return !!el.style.length && ((document.documentMode === undefined || document.documentMode > 9)); });