[pistoriusp]

Nope! They just return standard JavaScript.

A typical worker looks something like this:

    export default {
        fetch({ request }) {
          return new Response('ok')
        } 
    }

DefineApp just wraps that initial entry point into something that allows us to run middleware, match the router, and render out the page or the response object.

Love that you're a fan! Remember... No magicians allowed here.