has been blocked by CORS policy: Response to preflight request doesn’t pass access control check: The ‘Access-Control-Allow-Origin’ header has a value

full erorr

Access to XMLHttpRequest at 'https:/domain/errors/403/' (redirected from 'http://domain/includes/action.php') from origin 'domain' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: The 'Access-Control-Allow-Origin' header has a value 'http://domain' that is not equal to the supplied origin.

the code should to search without refresh so in localhost all work right but when i go to server i got this erorr in console

here my php where i got respond to my main page

my php code

<?php
include 'db.php';
if (isset($_POST['search'])) {
$Name = $_POST['search'];
$Query = "SELECT * FROM items WHERE name LIKE '%$Name%' OR namea LIKE '%$Name%' LIMIT 6";
$q2 = "SELECT * FROM items WHERE namea LIKE '%$Name%' LIMIT 6";
$ExecQuery = mysqli_query($con, $Query);
$ExecQuery2 = mysqli_query($con, $q2);
if ($ExecQuery) {
    $go = $ExecQuery;
} else {
    $go = $ExecQuery2;
}
echo '<ul class="cards">';
while ($row = mysqli_fetch_array($go)) {
    $name = $row['name'];
    $p = $row['price'];
    $d = $row['descrip'];
    $m = $row['img'];
    echo '
    <li class="cards__item">
    <div class="card">
        <img src="pimg/' . $m . '" class="card__image">
        <div class="card__content">
            <div class="card__title">name: ' . $name . '</div>
            <div class="card__title">price: ' . $p . ' $</div>
            <p class="card__text">' . $d . '</p>
            
        </div>
    </div>
    </li>';
}

}
here my js code to send the data to search.php and got the respond

ajax code

function fill(Value) {
$('#search').val(Value);
$('#display').hide();
}
$(document).ready(function () {
$("#search").keyup(function () {
    var name = $('#search').val();
    if (name != "") {
        $.ajax({
            type: "POST",
            url: "includes/search.php",
            data: {
                search: name
            },
            success: function (html) {
                $("#display").html(html).show();
            }
        });
    }
});
});