[Answer]-Nodejs wont allow non local connections

replace app.listen(8080) to app.listen(8080, '0.0.0.0').

I hope you didn’t expect localhost to be internet visible by default

The easiest way to do this would be to deploy your app to one of the platform services available. Heroku is a good choice for node.js that offers a free plan.

On the other hand, if you just want to test things out, ngrok is a handy tool that can make your localhost:port visible to the internet via a generated URL like http://{hash}.ngrok.com.