From 148e35da06a5e6792bc15e23c4efc10c3f5f36c0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Michal=20=C4=8Ciha=C5=99?= <michal@cihar.com>
Date: Mon, 7 Feb 2011 18:49:47 +0100
Subject: [PATCH] This might not be defined when login fails

---
 libraries/header.inc.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/header.inc.php b/libraries/header.inc.php
index dee9b1532..a4fdfc687 100644
--- a/libraries/header.inc.php
+++ b/libraries/header.inc.php
@@ -17,7 +17,7 @@ require_once './libraries/common.inc.php';
 /**
  * If this is an Ajax request, we do not need to generate all this output.
  */
-if (!$GLOBALS['is_ajax_request']) {
+if (isset($GLOBALS['is_ajax_request']) && !$GLOBALS['is_ajax_request']) {
 
     if (empty($GLOBALS['is_header_sent'])) {