How to set it correctly on cloud functions?

Ionic Framework
1

Hi everyone, i did a cloud function but it gives me:

“Http failure response for https://us-central1-objects-mec.cloudfunctions.net/notif: 0 Unknown Error”

What i’m doing wrong?

const functions = require('firebase-functions')
const cors = require('cors')({ origin: true });

exports.notif = functions.https.onRequest((request, response) => {
    cors(request, response, () => {
        functions.firestore
            .document('objects/{new}')
            .onCreate((snap, context) => {
                response.setHeader('Access-Control-Allow-Origin', '*');
                const data = snap.data();
                console.log(data)
                const name = data.name.val()
                const title = data.title.val()
                const message = `${name} - ${title}`
                response.send(message);
            });
    });
});

Thank you so much!

Regards