Keepalive in admin. Fires a 'keepAlive' task 5s before the end of the admin session

classes/controller.php

@@ -193,6 +193,16 @@ class AdminController
         return true;
     }
 
+    /**
+     * Handle logout.
+     *
+     * @return bool True if the action was performed.
+     */
+    protected function taskKeepAlive()
+    {
+        exit();
+    }
+
     /**
      * Handle the email password recovery procedure.
      *