diff --git a/src/includes/routes.php b/src/includes/routes.php
index 74792d81..bcd269d9 100644
--- a/src/includes/routes.php
+++ b/src/includes/routes.php
@@ -66,6 +66,7 @@ LSurl :: add_handler('#^ajax/keepLSsession/?$#', 'handle_ajax_keepLSsession', tr
  * @retval void
  **/
 function handle_ajax($request) {
+  LSsession :: setAjaxDisplay();
   $data = null;
   switch ($request -> type) {
     case 'class':