Cross-origin resource sharing (CORS) is a mechanism that allows many resources (e.g. fonts, JavaScript, etc.)
Cross-origin resource sharing [CORS](https://developer.mozilla.org/fr/docs/HTTP/Access_control_CORS) is a mechanism that allows many resources (e.g. fonts, JavaScript, etc.)
on a web page to be requested from another domain outside the domain the resource originated from.
In particular, JavaScript's AJAX calls can use the XMLHttpRequest mechanism. Such "cross-domain" requests would
otherwise be forbidden by web browsers, per the same origin security policy.