ipv6 only server

[behinger]

Hi!
on an ipv6-only server, JSServe doesnt work for me (and with that WGLMakie, my main target). While the plot is showing, I get the following error in the console (and interactivity is not working):
Firefox kann keine Verbindung zu dem Server unter ws://localhost:9384/bc499795-49cc-44e8-9540-a5156c8ad9d9 aufbauen.

I dont have much time to test/fix it right now (maybe later), but the fix might already be:

https://github.com/SimonDanisch/JSServe.jl/blob/40ec38455b7d05d9f1fcdc46ac6e456ff44df1a4/src/HTTPServer/implementation.jl#L235

Needs an ipv4/ipv6 flag looped through to Sockets.getaddr()
(else WGLMakie.Page(;listen_url = "::/0",external_url = "bla.blub") runs into

DNSError: ::/0, unknown node or service (EAI_NONAME)

    getalladdrinfo(::String)@addrinfo.jl:113
    [email protected]:141[inlined]
    try_listen(::String, ::Int64)@implementation.jl:235

and (optionally as a user you can overwrite) https://github.com/SimonDanisch/JSServe.jl/blob/master/src/server-defaults.jl

might need specifications for ipv6 (e.g. ipv6 flag + "::/0" as default).

---

That being said, I have little tidea of what's going on with ipv6 (especially with a nat64 in the background trying to make some ipv4 things compatibler)- I simply have a server that is ipv6-only and it is a terrible mess so far - so whatever I propose here, take it with a large grain of salt.
I do think I have the correct ports open - e.g. Pluto is working right now, but then again, who knows 🤷

[SimonDanisch]

Ah yeah, we should refactor that to allow directly passing a InetAddr