HTTP/2 Server Push & Service Workers example

This code example is explained in https://blog.yld.io/2017/03/01/optimize-with-http-2-server-push-and-service-workers.

(Image: This example with a valid certificate and cached resources - The two pushed resources are cached and later retrieved from disk cache, when Service Worker tries to request them.)

Install the dependencies and start the server

yarn install
npm start

Go to https://localhost:3000/