As a reminder, this project is being built upon the following starter project on [Repl.it](https://repl.it/github/freeCodeCamp/boilerplate-infosec), or cloned from [GitHub](https://github.com/freeCodeCamp/boilerplate-infosec/).
Hackers can exploit known vulnerabilities in Express/Node if they see that your site is powered by Express. `X-Powered-By: Express` is sent in every request coming from Express by default. Use the `helmet.hidePoweredBy()` middleware to remove the X-Powered-By header.