This is a skeleton express layout to demonstrate how to set CSP headers, get reports, and do CLI stuff. I threw together a couple of quick violations, dropped in a POST endpoint for reports, and demoed the routes.
There are better production tools. This is useful for quick tests or understanding how it works.
$ git clone https://github.com/wizardsoftheweb/express-csp-demo.git
$ cd express-csp-demo
$ yarn
$ npm start
or
$ node server
or
$ docker-compose up [-d]