Web Socket issue exposing OctoPrint using cloudflared (formerly argo)

I was trying to expose my OctoPrint server through Cloudflare using cloudflared, which works similar to ngrok but offers quite a bit of additional functionality. I use it for several other apps I host off my home network and figured it would be pretty simple, but for some reason the WebSocket connection seems to fail without much useful information (likely by something in cloudflare). I've read through the Cloudflare documentation on WebSockets and tried tweaking a few

WebSocket connection to 'wss://octopi.example.com/sockjs/039/3myxvhxc/websocket' failed:   packed_libs.js?1fe9f29c:1238 

I don't see any errors in the octoprint.log.

Anyone have any thoughts of what could be causing this failure?

I guess there might be something incompatible with Cloudflared. It is very hard to work out what is going on there. Does cloudflared have any of it's own logs? Is that error message in the browser console? It seems like after failed: it should have some kind of reason - or at least, that would make it useful

I didn't try the websocket way.

But if you always connect via a PC, you can use the ssh tunnel do a port forwarding via ssh to the local 80 or 8080 or something like this.
From the phone, might be more complicated.