cors config express code example
Example 1: cors npm
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");
});
Example 2: cors express
var allowedOrigins = ['http://localhost:3000',
'http://yourapp.com'];
app.use(cors({
origin: function(origin, callback){
if(!origin)
return callback(null, true);
if(allowedOrigins.indexOf(origin) === -1){
var msg = 'The CORS policy for this site does not ' +
'allow access from the specified Origin.';
return callback(new Error(msg), false);
}
return callback(null, true);
}
}));