Ticket #26218: 26218.patch

wp-includes/cron.php

@@ -272 +272 @@
          * }
          */
         $cron_request = apply_filters( 'cron_request', array(
-                'url'  => add_query_arg( array( 'doing_wp_cron', $doing_wp_cron ), site_url( 'wp-cron.php' ) ),
+                'url'  => add_query_arg( 'doing_wp_cron', $doing_wp_cron, site_url( 'wp-cron.php' ) ),
                 'key'  => $doing_wp_cron,
                 'args' => array(
                         'timeout'   => 0.01,