adding cors

index.js

@@ -10,6 +10,12 @@ app.use(bodyParser.json());
 app.use(bodyParser.urlencoded({ extended: true }));
 app.use(cookieParser());
 
+app.use(function(req, res, next) {
+    res.header("Access-Control-Allow-Origin", "*"); // update to match the domain you will make the request from
+    res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept");
+    next();
+  });
+
 const bcrypt = require('bcrypt');
 const crypto = require('crypto');
 const DB = require("./mongoDB.js");