debug

www/js/autodoc.js

       xhr: function()
       {
         var xhr = new window.XMLHttpRequest();
-        xhr.upload.addEventListener("progress", function(evt){
+        xhr.upload.addEventListener("progress", function(evt, x){
           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_this", this);
+            console.log("upload_progress_this", x);
             console.log("upload_progress_event", evt);
           }
         }, false);