Cannot undo the first image until Blob Storage supports CORS

[jperl]

//http://www.mygreatwindowsazureidea.com/forums/34192-windows-azure-feature-voting/suggestions/2850796-support-cross-origin-resource-sharing-cors-via-a
// var img = imageUpload.cropBox.get(0);
// imageUpload.cropBox.on("load", function () {
// //if the image data was not set on the settings (on the first load), create it from the image
// //http://stackoverflow.com/questions/934012/get-image-data-in-javascript
// if (vm.get("settings.imageData") == null) {
// var canvas = document.createElement("canvas");
// canvas.width = img.width;
// canvas.height = img.height;
// var ctx = canvas.getContext("2d");
// ctx.drawImage(img, 0, 0);
// var data = canvas.toDataURL("image/png");
// data = data.replace(/^data:image/(png|jpg|gif);base64,/, "");
//
// vm.set("settings.imageData", data);
// vm.set("settings.imageFileName", "newImage.png");
// saveHistory.resetHistory();
// }
// });