Logout and click on back button redirect to page issue

In Laravel when i logout and click on back button it goes back to page from where i logout.

I think its issue of flush session data so i have used below method to flush session data and redirect to login page.

I have removed this line Artisan::call('cache:clear'); for clear cache is well.

public function getLogout()
{
        $this->auth->logout();
        Artisan::call('cache:clear');
        Session::flush();
        return redirect('login');
}

this are libraries i have also used :

namespace App\Http\Controllers\Auth;

use App\Http\Controllers\Controller;
use Illuminate\Foundation\Auth\AuthenticatesUsers;
use Illuminate\Support\Facades\Redirect;
use Lang;
use App\User;
use Auth;
use Session;

I think session is not clearing data or redirect issue.

via Chebli Mohamed