Index: wp-includes/pluggable.php
===================================================================
--- wp-includes/pluggable.php	(revision 4262)
+++ wp-includes/pluggable.php	(working copy)
@@ -260,7 +260,7 @@
 function wp_redirect($location, $status = 302) {
 	global $is_IIS;
 
-	$location = preg_replace('|[^a-z0-9-~+_.?#=&;,/:%]|i', '', $location);
+	$location = preg_replace('|[^a-z0-9-~+_.?#=&;,/:%\(\)\{\}\[\]]|i', '', $location);
 	$location = wp_kses_no_null($location);
 
 	$strip = array('%0d', '%0a');