How to allow CORS in react.js?

Question

I\'m using Reactjs and using API through AJAX in javascript. How can we resolve this issue? Previously I used CORS tools, but now I need to enable CORS.

Answer 1

It is better to add CORS enabling code on Server Side. To enable CORS in NodeJS and ExpressJs based application following code should be included-

var app = express();

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();
});