Index: includes/bootstrap.inc
===================================================================
RCS file: /cvs/drupal/drupal/includes/bootstrap.inc,v
retrieving revision 1.221
diff -u -p -r1.221 bootstrap.inc
--- includes/bootstrap.inc	6 Sep 2008 08:36:19 -0000	1.221
+++ includes/bootstrap.inc	5 Sep 2008 23:15:13 -0000
@@ -313,6 +313,13 @@ function drupal_unset_globals() {
       }
     }
   }
+  // Make sure that the $_SERVER variable has everything we need.
+  if (!isset($_SERVER['HTTP_REFERER'])) {
+    $_SERVER['HTTP_REFERER'] = '';
+  }
+  if (!isset($_SERVER['REQUEST_TIME'])) {
+    $_SERVER['REQUEST_TIME'] = time();
+  }
 }
 
 /**