[Self-Hosted] Fail to discover server using connect on login screen

(#639) Bug Fixed self-hosting

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Comment by @MrRubberDucky
RexSystem 1 vote edited Merged from #688 originally by @MrRubberDucky on GitHub
You can fix it by adding following to your Caddyfile, doesn't matter where. Can be at the end or at the start.
{$FLUXER_CADDY_SITE_ADDRESS} {
        [...]
        handle /.well-known/* {
                reverse_proxy fluxer-api:8080
        }
}
This is a duplicate of #639