HTTPS for Monica 5 (Chandler beta?)

[kudrykv]

End problem I'm having is seeing blank page; browser console shows these errors:

Mixed Content: The page at '<URL>' was loaded over HTTPS, but requested an insecure stylesheet '<URL>'. This request has been blocked; the content must be served over HTTPS.

Mixed Content: The page at 'https://my-domain.me/login' was loaded over HTTPS, but requested an insecure stylesheet 'http://my-domain.me/build/assets/app-D6EK0Jbv.css'. This request has been blocked; the content must be served over HTTPS.

I'm running Monica as such:

docker run -p 8061:80 -e MAIL_MAILER=log -e APP_ENV=production -e APP_URL='https://my-domain.me' ghcr.io/monicahq/monica-next:main

Although I'm passing envvars, Monica doesn't seem to use them (I'm making such guess, as APP_URL has not been changed):

$ docker container exec -ti pensive_clarke bash
# cat .env

APP_NAME=Monica
APP_ENV=production
APP_KEY=base64:QRynl0cd3DEuoxC3RIVaTTU6yyDXeEf5Mg7iH86TbLE=
APP_DEBUG=false
APP_URL=https://monica.test

# Database to store information
DB_CONNECTION=sqlite
# DB_DATABASE=/var/www/html/storage/database.sqlite

# Drivers
CACHE_DRIVER=database
QUEUE_CONNECTION=sync
SESSION_DRIVER=database

# Search
SCOUT_DRIVER=database
SCOUT_QUEUE=false

# Log
LOG_CHANNEL=stderr

I'm using Caddy to reverse proxy:

my-domain.me {
        reverse_proxy localhost:8061
}

Now, when I access https://my-domain.me, the blank page opens, and I get a burst of errors about blocked requests, that a bunch of insecure requests were made. If I try to curl those links, I get 308 Redirect to https; however, browser plain drops even an attempt to connect over http.

The site, however, works, if I go to my-public-ip-address:8061. There, it is working fine, but it works over http protocol.

How can I make https work? What am I doing wrong?