Ticket #21938: 21938.patch

wp-includes/functions.php

@@ -903 +903 @@
         $headers = array(
                 'Expires' => 'Wed, 11 Jan 1984 05:00:00 GMT',
                 'Last-Modified' => gmdate( 'D, d M Y H:i:s' ) . ' GMT',
-                'Cache-Control' => 'no-cache, must-revalidate, max-age=0',
+                'Cache-Control' => 'no-cache, no-store, must-revalidate, max-age=0',
                 'Pragma' => 'no-cache',
         );