Netflux http 500 response code

hi, after upgrading to the 16.x version of Xwiki, I can’t use the CD WYSIWYG editor anymore, it keeps loading. After checking the logs, I see there are 500’s http responsesn on the netflux url.

I have no idea where this is coming from, or how to solve it.

“GET /xwiki/websocket/xwiki/netflux HTTP/1.1” 500

I cannot query the document directly because then I get a 404

DocumentDoesNotExist page on the wiki)

This WebSocket end-point is used by realtime editing. You probably have an HTTP proxy in front of XWiki, and it isn’t forwarding the WebSocket requests properly. Checkout this thread After update from 17.3 to 17.5 - Page edit doesn't work and this issue Loading... .