Ticket #5114: 5114.3.diff

wp-includes/pluggable.php

@@ -437 +437 @@
 
         $allowed_hosts = (array) apply_filters('allowed_redirect_hosts', array($wpp['host']), $lp['host']);
 
-        if ( isset($lp['host']) && !in_array($lp['host'], $allowed_hosts) )
+        if ( isset($lp['host']) && ( !in_array($lp['host'], $allowed_hosts) && $lp['host'] != strtolower($wpp['host'])) )
                 $location = get_option('siteurl') . '/wp-admin/';
 
         wp_redirect($location, $status);