How to solve datatable 403 forbidden in production Laravel? - php

Question

I have some code to request datatable via jquery ajax that returns:
403 forbidden
in a production environment, it's working properly in my local environment.
When I open url directly in browser it shows JSON array.
this is my ajax request:
$(function(){
$.ajaxSetup({
headers: {
'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')
}
});
var state = true;
var otable = $('#example').DataTable({
processing: true,
serverSide: true,
ajax: "{{ route('get.data') }}",
columns: [
{ data: 'CountryCode', name: 'CountryCode' },
{ data: 'CountryName', name: 'CountryName' },
{ data: 'FgActive', name: 'FgActive' },
{ data: 'action', name: 'action' }
]
});
my route
Route::get('get-data-my-datatables', [
'as'=>'get.data',
'uses'=>'CountryController#getData'
]);
Below is function in controller
public function getData()
{
$country = Country::all();
return datatables()
->of($country)
->addColumn('action', function ($country) {
return
'<button type="button" name="'.$country->CountryCode.'" class="btn btn-primary btn-sm fa fa-pencil" id="btnEdit" data-toggle="modal"></button>
<button type="button" name="'.$country->CountryCode.'" class="btn btn-danger btn-sm fa fa-trash" id="btnDel" data-toggle="modal"></button>'
;
})
->make(true);
}
Thank you for your attention.
Update
As requested, this is my network tab: