Codeigniter AJAX请求自定义文件夹

Question

I created a new folder in my application directory called scripts.

The path to this folder is [::1]/development/application/scripts/. I would like to make ajax requests to script files in this folder.

Here is my request:

$.ajax({
    type: "GET",
    url: "<?=site_url('application/scripts/center_contacts_server_processing.php')?>",
    success: function(resp) {
        console.log(resp)
    }
});
console.log("<?=site_url('application/scripts/center_contacts_server_processing.php')?>");

center_contacts_server_processing.php

<?php
    echo 'hi';
?>

And the output:

http://[::1]/development/application/scripts/center_contacts_server_processing.php
http://[::1]/development/application/scripts/center_contacts_server_processing.php 403 (Forbidden)

Note: I use ajax all around my site but I usually call controllers.