removed whitelist from the server and to netlib, fixed test website

test.html

@@ -28,6 +28,7 @@
   id="drop_zone"
   ondrop="dropHandler(event);"
   ondragover="dragOverHandler(event);"
+  ondragenter="dragEnterHandler(event);"
   >
 </div>
 
@@ -64,6 +65,10 @@
     {
         ev.preventDefault();
     }
+    function dragEnterHandler(ev) 
+    {
+        ev.preventDefault();
+    }
 
 
     function uploadFile(file)