anchor.diff:            var $currentImg = $imgSet.find('[data-compare-type="current"]');
             //- assert.strictEqual($currentImg.length, 1);
   
  -          // TODO: Extract base64 content for image
  +          // Extract base64 content for image
  +          var base64Data = getBase64Content($currentImg[0]);
   
             // Run acceptance function
  -          acceptImageSetChanges($currentImg[0], imgSetId);
  +          acceptImageSetChanges(base64Data, imgSetId);
           });
         });
   
  
positive.code: 
          // Define acceptance helper
          function acceptImageSetChanges(acceptedImgBase64, imgSetId) {
            // TODO: Make an AJAX call to accept our image
  
            // Fade out diff and reference images to "loading" state
            var $imgSet = $('[data-image-set="' + jQuery.escapeSelector(imgSetId) + '"]');
            //- assert.strictEqual($imgSet.length, 1);
  
negative.code:             // If the images are different widths, return false
              // TODO: Allow this to be a configurable heuristic
              var actualDiffImg = compareSet.diffImg;
              // TODO: Use `naturalWidth`
              if (expectedDiffImg.width !== actualDiffImg.width) {
                return false;
              }
  