Add CORS support.

Required for `/refresh_token` with `fetch`.

Author: pomle

authorization_code/app.js

@@ -9,6 +9,7 @@
 
 var express = require('express'); // Express web server framework
 var request = require('request'); // "Request" library
+var cors = require('cors');
 var querystring = require('querystring');
 var cookieParser = require('cookie-parser');
 
@@ -36,6 +37,7 @@ var stateKey = 'spotify_auth_state';
 var app = express();
 
 app.use(express.static(__dirname + '/public'))
+   .use(cors())
    .use(cookieParser());
 
 app.get('/login', function(req, res) {

package.json

@@ -6,6 +6,7 @@
   "dependencies": {
     "cookie-parser": "1.3.2",
     "express": "~4.16.0",
+    "cors": "^2.8.4",
     "querystring": "~0.2.0",
     "request": "~2.83.0"
   }