Getting express server to accept CORS request

Question

I have my express server running on http://localhost:3000 (I call this web-server) I have another application running on localhost:8100 (I call this simply \'app\')

Answer 1

Apparently cors module didn't work.

Using the hints given above I used the following code:

  if (req.method === "OPTIONS") {
    res.header('Access-Control-Allow-Origin', req.headers.origin);
  } else {
    res.header('Access-Control-Allow-Origin', '*');
  }

This did the trick.