debug

www/js/autodoc.js

       processData: false,
       xhr: function()
       {
-        var xhr = new window.XMLHttpRequest();
-        xhr.upload['data'] = e.data;
-        xhr.upload.addEventListener("progress", function(evt){
+        var xhr = $.ajaxSettings.xhr();
+        $(xhr.upload).on('progress', e.data, function(evt) {
+        // xhr.upload.addEventListener("progress", function(evt){
           if (evt.lengthComputable) {  
             var progress = Math.floor(evt.loaded / evt.total * 50);
             if ( progress < 1 ) { progress = 1; }
             if ( progress > 49 ) { progress = 49; }
             console.log("upload_progress_event", evt);
           }
-        }, false); 
+        });
+        //}, false); 
         return xhr;
       },
       success: function(data, status, xhr){