node express cors headers

1var express = require('express')
2var cors = require('cors')
3var app = express()
4
5app.use(cors())
6
7app.get('/products/:id', function (req, res, next) {
8  res.json({msg: 'This is CORS-enabled for all origins!'})
9})
10
11app.listen(80, function () {
12  console.log('CORS-enabled web server listening on port 80')
13})
14

1var express = require('express')
2var cors = require('cors')  //use this
3var app = express()
4
5app.use(cors()) //and this
6
7app.get('/user/:id', function (req, res, next) {
8  res.json({user: 'CORS enabled'})
9})
10
11app.listen(5000, function () {
12  console.log('CORS-enabled web server listening on port 5000')
13})

1app.use(function(req, res, next) {
2  res.header("Access-Control-Allow-Origin", "YOUR-DOMAIN.TLD"); // update to match the domain you will make the request from
3  res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
4  next();
5});

1$ npm install cors
2