text: // 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));
  });
  