I'm setting up admidio to use with some of my peepz!

It looks great at doing exactly what we need.
I hope it works well for us.
I'm having an issue though when using this awesome app with docker and behind traefik.
I've set everything up just as I've done for other apps in order to serve the site over HTTPS, yet the styles (css) and other resources do not load, since they are referenced with the HTTP scheme.
I'm guessing that the issue here is related to this, because I can see that only the resources queried through HTTP are not loaded, and every other one is loaded correctly.
It might be that PHP recognizes the site being requested by traefik through HTTP and therefore builds the URLs of resources using HTTP instead of HTTPS, which would suit better for this case.
I cannot explain though why traefik doesn't do its part in redirecting those queries to the HTTPS scheme, which it certainly does for the main php scripts (installation and overview).
I can also see that if I expose the 8080 port as documented in the examples I get it to work, but serving this one app with no HTTPS is no good, because of the sensitive nature of information handled by it.
Wouldn't it be simpler to just use relative URLs? Probably there's a reason for not doing that.
I've searched through the available docs yet with no success trying to find an option or environment variable that would be used for this case.
I even tried to use VIRTUAL_HOST and VIRTUAL_PROTO, which is used by the builder of some other docker image and a sample docker-compose to use together with an nginx reverse proxy, but I'm just getting the same results.
I think the easier way to get around the issue is to get php to build all URLs with the HTTPS scheme, but I'm no expert, so I wouldn't take this idea for a fact.
Any help around this issue would be most appreciated.
Thanks in advance.
MFG
Cristóbal