Secure WebSockets support (TLS)

[piegamesde]

magic-wormhole/magic-wormhole-protocols#12 has made clear that we really should be using TLS. There's no documentation on that topic so I did the naive thing tried connecting to the rendezvous server using wss://relay.magic-wormhole.io:4000/v1. Unfortunately, it gives me TLS handshake timeout errors. Tested with both the Python and the Rust implementation.

[meejah]

This sounds like a deployment issue (that can only be fixed by @warner for "the default one).

[piegamesde]

I can confirm this is a deployment issue on <relay.magic-wormhole.io>. I deployed a Nginx proxy for the server and it works. You can try it out by using wss://piegames.de/wormhole-relay. (Obviously don't use in production, for obvious reasons.)