Just because it caused me more trouble than it’s worth, here’s how I setup my Apache reverse proxy for UOS
RewriteEngine On
RewriteCond %{HTTP:Upgrade} =websocket [NC]
RewriteRule /(.*) wss://REDACTED:11443/$1 [P,L]
ProxyPass / https://REDACTED:11443/
ProxyPassReverse / https://REDACTED:11443/