SEO: X-Robots-Tag in CartController

[Mr S]

Because of a error in template Google has indexed cart pages like: http://www.mysite.com/cart?add=&id_product=123&token=xxxxxxx

 

Has anyone else tried using the X-Robots-Tag in the CartController :: init()

 

file: controllers/front/CartController.php

   public function init()
   {
      parent::init();
      header("X-Robots-Tag: noindex, nofollow", true);
....