CORS

Published Aug 18, 2022
Contribute to Docs

Cross-Origin Resource Sharing (CORS) is a tool that uses HTTP headers to help servers determine which requests from other resources can access the current, cross-origin resource.

In most cases, browsers will make a “preflight” request to the host server to ensure the actual request will work. This is another function of CORS.

CORS

Access-Control-Allow-Origin
Determines which requests from other pieces of web content have access to the current resource.

All contributors

Looking to contribute?

Learn More on Codecademy