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();
});app.use((req, res, next) => {
const host = req.get('host');
const origin = req.get('origin');
});var express = require('express')
var cors = require('cors') //use this
var app = express()
app.use(cors()) //and this
app.get('/user/:id', function (req, res, next) {
res.json({user: 'CORS enabled'})
})
app.listen(5000, function () {
console.log('CORS-enabled web server listening on port 5000')
})//install package => npm i cros
const cors = require('cors');
const app = express()
app.use(cros()); // use this cros in middleware and done
// Wide listing a cors to accept a specific domain route
const cors = require('cors');
const corsOption = {
origin: ['http://localhost:3000'],
};
app.use(cors(corsOption));var express = require('express')var cors = require('cors')var app = express() app.use(cors()) app.get('/products/:id', function (req, res, next) { res.json({msg: 'This is CORS-enabled for all origins!'})}) app.listen(80, function () { console.log('CORS-enabled web server listening on port 80')})