Symfony\Component\HttpKernel\Exception\HttpException error when I have post method on route
As I have mentioned in comments. Its CSRF token issue.
In order to fix it
1) You can exclude your URI for CSRF
2) You can put csrf_token() to your ajax request.
Detailed explaination can be found here https://laravel.com/docs/5.5/csrf
You must include CSRF token in both blade form and post method.
var _token = $("input[name='_token']").val();
and pass together with other data.
data: { _token:_token , etc:etc },
have fun :)