diff --git a/misc/ajax.js b/misc/ajax.js
index 01b894d..34831e8 100644
--- a/misc/ajax.js
+++ b/misc/ajax.js
@@ -448,7 +448,10 @@
  * Handler for the form redirection error.
  */
 Drupal.ajax.prototype.error = function (response, uri) {
-  alert(Drupal.ajaxError(response, uri));
+  if(response.status != 0) {
+    alert(Drupal.ajaxError(response, uri));
+  }
+  
   // Remove the progress element.
   if (this.progress.element) {
     $(this.progress.element).remove();
diff --git a/misc/autocomplete.js b/misc/autocomplete.js
index 5679081..ee4e336 100644
--- a/misc/autocomplete.js
+++ b/misc/autocomplete.js
@@ -307,7 +307,9 @@
         }
       },
       error: function (xmlhttp) {
-        alert(Drupal.ajaxError(xmlhttp, db.uri));
+        if (xmlhttp.status != 0) {
+          alert(Drupal.ajaxError(xmlhttp, db.uri));
+        }
       }
     });
   }, this.delay);