Ticket #23811: 23811.2.diff

wp-includes/default-constants.php

@@ -55 +55 @@
         // Add define('WP_DEBUG_DISPLAY', null); to wp-config.php use the globally configured setting for
         // display_errors and not force errors to be displayed. Use false to force display_errors off.
         if ( !defined('WP_DEBUG_DISPLAY') )
-                define( 'WP_DEBUG_DISPLAY', true );
+                define( 'WP_DEBUG_DISPLAY', ! ( defined( 'XMLRPC_REQUEST' ) && XMLRPC_REQUEST ) );
 
         // Add define('WP_DEBUG_LOG', true); to enable error logging to wp-content/debug.log.
         if ( !defined('WP_DEBUG_LOG') )