Doesn't work with Cloudflared-Addon

[nvram93]

Hi, i've set up the addon, works fine on local network, but sadly it just shows 404: not found (or the home assistant ui login, when removing path) when i try to open the guest link via external access (cloudflared). Is there any way you can fix this?

local link which works fine: https://homeassistant:8443/Door/
external link which shows a 404: not found: https://ha.my.tld:8443/Door/
just shows me HA-UI login screen: https://ha.my.tld:8443/

i could try and get it to work without cloudflare, but this would require the addon to be able to a custom certificate instead of just using the one home assistant (in this case cloudflared) provides.
this is because Cloudflared uses its own certificate which is only valid for the exact domain, no wildcard, subdomain, etc, so guest would get a certificate mismatch warning when opening the link.

so either kindly try and fix the incompatibility (which may not even be possible since it could also be a limitation of the cloudflared addon) or add the ability to use custom certificates for TLS, so we can ignore cloudflared for the guest link and just use port forwarding.

thanks for reading, hope this will get fixed soon :) have a good one

edit:
did a little research, cloudflared should be compatible with your addon, because other addons like nextcloud also work. source: https://community.home-assistant.io/t/new-add-on-cloudflared/361637/9