dummy.php

<?php
    
header('Access-Control-Allow-Origin: *');
header("Access-Control-Allow-Methods: HEAD, GET, POST, PUT, PATCH, DELETE, OPTIONS");
header("Access-Control-Allow-Headers: X-API-KEY, Origin, X-Requested-With, Content-Type, Accept, Access-Control-Request-Method,Access-Control-Request-Headers, Authorization, uid, appid");
header('Content-Type: application/json');


$method = $_SERVER['REQUEST_METHOD'];
if ($method == "OPTIONS") {
    header('Access-Control-Allow-Origin: *');
    header("Access-Control-Allow-Headers: X-API-KEY, Origin, X-Requested-With, Content-Type, Accept, Access-Control-Request-Method,Access-Control-Request-Headers, Authorization, uid, appid");
    header("HTTP/1.1 200 OK");
    die();
}
$headers = apache_request_headers();
echo json_encode(array("headers" => $headers));
?>