anchor.diff:     var _e_ = new Evaporate({
         signerUrl: '/signature',
         aws_key: "<%= ENV['AWS_KEY'] %>",
  -      bucket: "<%= ENV['AWS_BUCKET'] %>"
  +      bucket: "<%= ENV['AWS_BUCKET'] %>",
  +      cloudfront: <%= !!ENV['AWS_USE_CLOUDFRONT'] %>,
  +      aws_url: "<%= ENV['AWS_URL'] || 'https://s3.amazonaws.com' %>"
      });
   
      $('#files').change(function(evt){
  
positive.code:             },
              complete: function(){
                 console.log('complete................yay!');
              },
              progress: function(progress){
                 console.log('making progress: ' + progress);
  
negative.code: 
        for (var i = 0; i < files.length; i++){
  
           console.log('START', new Date());
           _e_.add({
              name: 'test_' + Math.floor(1000000000*Math.random()),
              file: files[i],
  