What are the differences between CORS and JSONP?

What are the differences between CORS and JSONP?

CORS (Cross-Origin Resource Sharing) is a standard that allows servers to specify who can access their resources, while JSONP (JSON with Padding) is a technique used to overcome the same-origin policy by using script tags to fetch data.

Can you explain how CORS works?

Sure! CORS works by adding specific HTTP headers that tell the browser to allow requests from different origins. For example, the server can include the header 'Access-Control-Allow-Origin' to specify which domains are permitted.

What are the security implications of using JSONP?

JSONP can expose your application to security risks like Cross-Site Scripting (XSS) attacks, as it allows any script to be executed from the response. It's generally less secure than CORS.

When should I use CORS instead of JSONP?

You should use CORS when you have control over the server and can set the appropriate headers. It's more secure and flexible than JSONP, which is mainly a workaround for older browsers.