Actualizacion del cors

app.js

@@ -1,10 +1,11 @@
 var express = require('express');
 var app = express();
 var cors = require('cors');
+app.use(cors());
 app.get('/', function(req, res) {
     res.send('that is works');
 });
-app.use(cors());
+
 app.use(express.json()) // for parsing application/json
 app.use(express.urlencoded({ extended: true }))
 app.use(require('./routes/index.js'))

routes/loggin.js

@@ -14,6 +14,7 @@ function query(consulta) {
 
 
 app.post('/loggin', async(req, res) => {
+
     var aux = req.body.usuario;
     aux = aux.toLowerCase();
     let usuario = req.body.usuario;