Ticket #56840: 56840.diff

src/wp-includes/class-wp.php

@@ -410 +410 @@
          * @since 2.0.0
          * @since 4.4.0 `X-Pingback` header is added conditionally for single posts that allow pings.
          * @since 6.1.0 Runs after posts have been queried.
+         *
+         * @global WP_Query $wp_query WordPress Query object.
          */
         public function send_headers() {
+                global $wp_query;
+
                 $headers       = array();
                 $status        = null;
                 $exit_required = false;