Check the developer tool to see where the files come from.
Except Index(retrieved from Node), other static files like CSS, JS are loaded from Nginx.

Getting Started with Node on Heroku

This is a sample Node application deployed to Heroku. It's a reasonably simple app - but a good foundation for understanding how to get the most out of the Heroku platform.

Getting Started with Node Source on GitHub

How this sample app works

  • This app was deployed to Heroku, either using Git or by using Heroku Button on the repository.
  • When Heroku received the source code, it grabbed all the dependencies in the package.json.
  • The platform then spins up a dyno, a lightweight container that provides an isolated environment in which the slug can be mounted and executed.
  • You can scale your app, manage it, and deploy over 150 add-on services, from the Dashboard or CLI.
  • Check out the Getting Started guide to learn more!