net::ERR_CONNECTION_REFUSED . How to correctly configure Nginx with Socket.io?

[MarcoI]

Hi Francis,

I remember you have deep expertise with nginx configuration.
I posted in the mailing list a question about how to configure nginx in
order to use also golang webserver.
Would you be so kind in having a look at it?
https://forum.nginx.org/read.php?2,287914

Thank you very much.
Looking forward to your kind help.
Marco

Posted at Nginx Forum: https://forum.nginx.org/read.php?2,286850,287915#msg-287915