What is Cross-Origin-Resource-Sharing (CORS)?

Hello.

When you are involved in website development, you may come across a CORS error; and you may be wondering what it is and how to fix it. You need to understand how CORS works by exchanging CORS headers between the browser and the server.

In this video, we go through Cross-Origin-Resource-Sharing (CORS) that is a topic inside HTTP. Here we discuss simple requests, preflighted requests and requests with credentials. We discuss what flag needs to be set in the javascript script and which headers need to be set and exchanged during a CORS process.

Happy hacking!