diff --git a/misc/ajax.js b/misc/ajax.js
index 830c8aa..e7ddec6 100644
--- a/misc/ajax.js
+++ b/misc/ajax.js
@@ -448,7 +448,7 @@ Drupal.ajax.prototype.getEffect = function (response) {
  * 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, db.uri));
   // Remove the progress element.
   if (this.progress.element) {
     $(this.progress.element).remove();
diff --git a/misc/autocomplete.js b/misc/autocomplete.js
index 5e85be4..e41a87e 100644
--- a/misc/autocomplete.js
+++ b/misc/autocomplete.js
@@ -303,7 +303,9 @@ Drupal.ACDB.prototype.search = function (searchString) {
         }
       },
       error: function (xmlhttp) {
-        alert(Drupal.ajaxError(xmlhttp, db.uri));
+        if (xmlhttp.status != 0) {
+          alert(Drupal.ajaxError(xmlhttp, db.uri));
+        }
       }
     });
   }, this.delay);