How to launch a HTTP2 development web server

This feature requires node version 8.4.0 or above

As a HTTP2 connection must always be secure (modern browsers demand it), launching an HTTP2 server is identical to launching an HTTPS server with one exception - you set the --http2 flag instead of --https.

So, typical usage looks the same. Launch HTTP2 using the built-in SSL certificate:

$ ws --http2

Launch using your own private key and certificate:

$ ws --http2 --key my-key.pem --cert my-cert.pem