How does CORS work?

Can you explain what CORS is?

CORS stands for Cross-Origin Resource Sharing. It's a security feature that allows or restricts resources on a web page to be requested from another domain outside the domain from which the first resource was served.

Why is CORS important for web applications?

CORS is important because it helps prevent malicious websites from accessing sensitive data on another domain. It ensures that only trusted domains can interact with your resources.

How does a browser handle CORS requests?

When a browser makes a cross-origin request, it sends an 'Origin' header to the server. The server can then respond with specific headers to allow or deny the request.

What headers are involved in CORS?

Key headers include 'Access-Control-Allow-Origin', which specifies which origins are permitted, and 'Access-Control-Allow-Methods', which indicates the allowed HTTP methods.