Ticket #50760: 50760.patch

wp-includes/class-wp-customize-manager.php

@@ -1907 +1907 @@
                  * that the user's session has expired and they need to re-authenticate.
                  */
                 if ( $this->messenger_channel && ! current_user_can( 'customize' ) ) {
-                        $this->wp_die( -1, __( 'Unauthorized. You may remove the customize_messenger_channel param to preview as frontend.' ) );
+                        $this->wp_die(
+                                -1,
+                                sprintf(
+                                        /* translators: %s: customize_messenger_channel */
+                                        __( 'Unauthorized. You may remove the %s param to preview as frontend.' ),
+                                        '<code>customize_messenger_channel<code>'
+                                )
+                        );
                         return;
                 }