text: // code.google.com/speed/webp/
  // by rich bradshaw, ryan seddon, and paul irish
  
  
  // This test is asynchronous. Watch out.
  
  (function(){
  
    var image = new Image();
  
    image.onerror = function() {
        Modernizr.addTest('webp', false);
    };  
    image.onload = function() {
        Modernizr.addTest('webp', function() { return image.width == 1; });
    };
  
    image.src = 'data:image/webp;base64,UklGRiwAAABXRUJQVlA4ICAAAAAUAgCdASoBAAEAL/3+/3+CAB/AAAFzrNsAAP5QAAAAAA==';
  
  }());