Simply add the following lines to ./app/start/global.php at the "Application Error Handler" - Section there is no need to touch the "CSRF Protection Filter" at all.
App::error(function(Illuminate\Session\TokenMismatchException $exception, $code)
{
/*
| Write to a specific log
| Or write the request information to the database for e.g. a firewall mechanism
|
| Or just:
*/
$errors = [
'_token' => [
'Token tricking is very bad!'
]
];
/**
* Generate a new token for more security
*/
Session::regenerateToken();
/**
* Redirect to the last step
* Refill any old inputs except _token (it would override our new token)
* Set the error message
*/
return Redirect::back()->withInput(Input::except('_token'))->withErrors($errors);
});