How to correctly set cors for all paths in express?

Question

Node.js

How to set cors for all routers at once?

Answer 1

app.use(function(req, res, next) {
  res.header("Access-Control-Allow-Origin", "*");
  res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
  next();
});