Caddy as a Reverse Proxy to an installation with Wordpress & Caddy does not transfer css content

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2

O.k. after setting $_SERVER['HTTPS']='on'; everything worked, then this post showed me the right direction: caddy-behind-a-reverse-proxy-use-wrong-x-forwarded-proto. So I added after php_fastcgi unix//run/php/php8.2-fpm.sock

        {
                trusted_proxies private_ranges
        }

and my Caddy file looks like this now.

http://shiatsu.example.com {
        root * /var/www/wordpress
        php_fastcgi unix//run/php/php8.2-fpm.sock {
                trusted_proxies private_ranges
        }
        file_server
        encode gzip
        @disallowed {
                path /xmlrpc.php
                path *.sql
                path /wp-content/uploads/*.php
        }
        rewrite @disallowed '/index.php'
}

This solved the issue. It would be nice, if somebody could make a wiki entry out of it (I’m not allowed…)