CORS stands for Cross-Origin Resource Sharing. It is a browser mechanism which enables controlled access to resources located outside of a given domain.

Let’s assume your server is deployed in a remote location, and a user wants to interact with your application secure ly over the internet.

Ever wondered how big platforms like Meta, Google, or Twitter instantly tell you if your dream username is available, even after billions…

Ever wondered how massive platforms like Meta, Google, or Twitter know instantly if your username is taken, even with billions of users?