How to make a cross domain request in MAMP?

Question

PHP

MAMP is running
on it is running an application that is used to read the record of files

and the client application is running from another location and accesses the server through the localhost address

in all php files on the server there is a header: just added it but no contact there is an error: Access to restricted URI denied I would have done everything right , I don’t understand where the error is and how to fix it clearing the browser cache and reloading MAMP does not help the feeling that php files are cached and the server uses old versions of files that do not have a header: Access to restricted URI denied accessing the server via ajax- request
header("Access-Control-Allow-Origin: *");

var запрос = new XMLHttpRequest()
запрос.open('POST', 'скрипт.php')   
запрос.setRequestHeader('Cache-Control', 'no-cache') // попробовал так и не помогло, и говорит что это устарело
запрос.send(строка)

Answer 1

Try using JSONP.
These are cross-domain requests using the callback function, which is predefined in the request and described in the code.