cors 1 cors

const io = require("")(httpServer, 
  cors: {    
    origin: "*",    
    methods: ["GET", "POST"]  

Here is what the above code is Doing:
1. We’re importing the http module, which is a built-in Node module for creating HTTP servers.
2. We’re importing the module, which is a library for enabling real-time, bidirectional, and event-based communication between the browser and the server.
3. We’re creating an HTTP server using the http module.
4. We’re creating a server using the module.
5. We’re passing the HTTP server to the module.

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