Cross-Origin Resource Sharing.
When JavaScript makes a XmlHttpRequest to a server with a different origin than its own, the CORS settings will be checked. If the browser supports CORS, it will start the CORS process. Otherwise, an error will be the result.
When a server encounters the <code>cors</code> header, it will determine if the origin is in its list of locations it accepts requests from. And will fail if the origin is not allowed.

Cross-Origin Resource Sharing.

When JavaScript makes a XmlHttpRequest to a server with a different origin than its own, the CORS settings will be checked. If the browser supports CORS, it will start the CORS process. Otherwise, an error will be the result.

When a server encounters the `cors` header, it will determine if the origin is in its list of locations it accepts requests from. And will fail if the origin is not allowed.

It stands for "Cross-Origin Resource Sharing".
Read more about it here: <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS">https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS</a>.

It stands for "Cross-Origin Resource Sharing".

Read more about it here: [https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS](https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS).

I've seen a lot of people talking about CORS when their building frontend applications.
What does it stand for and what is its purpose?

What does CORS stand for and what is its purpose?