P5-1852 x/y coordinates are no longer stored in sessionStorage

src/ImageDataHandler.js

@@ -2,28 +2,28 @@
 
 function ImageDataHandler(img) {
 
+    var _cropData;
+
     /**
      * Gets information about how the cropped image is dragged
      * @return {Object}
      */
     this.getCropData = function () {
-        return JSON.parse(sessionStorage.getItem('cropData'));
+        return _cropData;
     };
 
     this.setCropData = function() {
         var viewportBounds = img.canvas.getViewport().getBounds();
         var dragAxis = img.canvas.getViewport().getData().axis;
 
-        var cropData = {
+        _cropData = {
             x: dragAxis === 'x' ? (viewportBounds.left - img.left) / (img.width * img.scaleX) : 0,
             y: dragAxis === 'y' ? (viewportBounds.top - img.top) / (img.height * img.scaleY) : 0,
         };
-
-        sessionStorage.setItem('cropData', JSON.stringify(cropData));
     };
 
     this.removeCropData = function() {
-        sessionStorage.removeItem('cropData');
+        _cropData = null;
     };
 
     /**