Index: mod/ouwiki/feed-wikihistory.php
===================================================================
RCS file: /home/cvs_repositories/globalcvs/ou-moodle/mod/ouwiki/feed-wikihistory.php,v
retrieving revision 1.3
diff -u -r1.3 feed-wikihistory.php
--- mod/ouwiki/feed-wikihistory.php	29 Oct 2007 16:58:25 -0000	1.3
+++ mod/ouwiki/feed-wikihistory.php	18 Aug 2009 09:17:41 -0000
@@ -33,7 +33,7 @@
 
 //print_object($changes); exit;
 
-$useragent=$_SERVER['HTTP_USER_AGENT'];
+$useragent=isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : '';
 $oldbrowser=
   (!preg_match('/Opera/',$useragent) && preg_match('/MSIE [456]/',$useragent)) || 
   preg_match('/Firefox\/1\./',$useragent);