I am sorry if this is a duplicate. I haven\'t found any question related to this yet:
The new TinyMCE 4.2 Image Tools saves images as base64 data in stead o
My code, it's works! If you modify the image and click confirm button then Image Tools will upload the new image to server automatic.
images_upload_handler: function(blobInfo, success, failure) {
var xhr, formData;
xhr = new XMLHttpRequest();
xhr.withCredentials = false;
xhr.open('POST',
'<%=request.getContextPath()%>/fylerMedia?flyerID=<%=flyerID %>'); <<<
Hope it helps you!