diff --git a/actions/userxrd.php b/actions/userxrd.php
index 7691ff155b..4851b0731c 100644
--- a/actions/userxrd.php
+++ b/actions/userxrd.php
@@ -30,6 +30,7 @@ class UserxrdAction extends XrdAction
     function prepare($args)
     {
         parent::prepare($args);
+        header('Access-Control-Allow-Origin: *');
 
         $this->uri = $this->trimmed('uri');
         $this->uri = self::normalize($this->uri);