Index: pluggable.php
===================================================================
--- pluggable.php	(revision 17943)
+++ pluggable.php	(working copy)
@@ -903,6 +903,7 @@
 		status_header($status); // This causes problems on IIS and some FastCGI setups
 
 	header("Location: $location", true, $status);
+	return true;
 }
 endif;