Thanks to Sönke the first early release of my sockjs library for vibe.d is working.
I registered it in dub and you can find it over at github:
https://github.com/Extrawurst/sockjs-d
My time is limited and our usecase here is just for the xhr-polling transport of sockjs, so I will most like not implement any of the others but I hope someone will - just fork it! ;)