Why doesn't AJAX call the script unless it's in the root of the site?

Question

AJAX

Actually, I ran into a problem. It is necessary to implement an entrance to the site. I made an AJAX call to the script on passport.php, but the problem is that it became necessary to create AJAX actions in a separate actions folder. But suddenly, for some reason, if I add a folder, it is stupidly not executed.

Where is the AJAX called from:

$(document).ready(function () {
    $('body').on('submit', '#passport', function (e) {
        e.preventDefault();
        $.ajax({
            url: '/actions/passport.action.php',
            method: 'post',
            dataType: 'html',
            data: $(this).serialize(),
            success: function (data) {
                if (data == 'false') {
                    Lobibox.notify('error', {
                        delay: 2000,
                        title: 'Oops',
                        msg: 'Неверный логин или пароль.'
                    });
                }
                if (data == 'true') {
                    window.location.replace('/index.php');
                }
            }
        });
    });
});

Script handler:

<?php

$hasLoginSet = isset($_POST['login']);
$hasPasswordSet = isset($_POST['password']);

if ($hasLoginSet and $hasPasswordSet) {
    $conf = parse_ini_file('conf.ini');
    if ($conf['login'] == $_POST['login'] and $conf['password'] == $_POST['password']) {
        setcookie('remix', $conf['remix']);
        echo 'true';
    } else {
        echo 'false';
    }
}

File structure: