csrf error 500 with cookies disabled in browser

Hi,
When cookies are disabled in browser, doing a controller post with csrf return a 500 error, which seems to be logical. But i can't find where and when in the flow i can catch that cookies are disabled. Putting log debug in front off controller indicates that nothing entered in controller.

Using CI 2.26.

Sorry for bad english i'm french 

found a dirty (?) solution, putting this in config.php instead of in a hook :

PHP Code:

if(!empty($_POST)) {
   if(!isset($_COOKIE[$config['sess_cookie_name']])) {
   // REDIRECT TODO
   }
}