What is the difference between CORS and Same-Origin Policy?

Can you explain the difference between CORS and Same-Origin Policy?

Sure! The Same-Origin Policy is a security measure that restricts web pages from making requests to a different domain than the one that served the web page. CORS, or Cross-Origin Resource Sharing, is a mechanism that allows web pages to request resources from a different origin, but only if the server permits it.

Why is the Same-Origin Policy important?

It's important because it helps prevent malicious websites from accessing sensitive data from another site without permission, protecting user privacy and security.

How does CORS work in practice?

CORS works by using HTTP headers. When a web page makes a cross-origin request, the browser sends an 'Origin' header to the server. The server can then respond with specific headers to allow or deny the request.

Can you give an example of a CORS request?

Certainly! For example, if a web app hosted on 'example.com' wants to fetch data from 'api.example.org', it will send a request with the 'Origin' header set to 'example.com'. If 'api.example.org' allows it, it will respond with the appropriate CORS headers.