diff -r 34716fd837a4 -r be944660c56a wp/wp-includes/IXR/class-IXR-server.php
--- a/wp/wp-includes/IXR/class-IXR-server.php	Tue Dec 15 15:52:01 2020 +0100
+++ b/wp/wp-includes/IXR/class-IXR-server.php	Wed Sep 21 18:19:35 2022 +0200
@@ -129,6 +129,7 @@
         if ($message && !is_object($error)) {
             $error = new IXR_Error($error, $message);
         }
+
         $this->output($error->getXml());
     }