Log issue: Static Cache with redirect to trailing slash

[carstenjaksch]

I have the following NGINX config that redirects to trailing slash:

    set $try_location @static;
    
    if ($request_method != GET) {
        set $try_location @not_static;
    }
    
    if ($args ~* "live-preview=(.*)") {
        set $try_location @not_static;
    }
    
    location / {
        try_files $uri/ $try_location;
    }
    
    location @static {
        rewrite ^([^.]*[^/])$ $1/ permanent;
        try_files /static${uri}_$args.html /static${uri}/_$args.html $uri $uri/ /index.php?$args;
    }
    
    location @not_static {
        try_files $uri $uri/ /index.php?$args;
    }

Now the production log gets flooded with these messages:

debug: Static cache loaded [https://www.domain.tld/page/] If you are seeing this, your server rewrite rules have not been set up correctly.

Static caching is working because I need to use the nocache tag for random content. But the debug message appears also on pages without the nocache tag – if that triggers it.

What could I optimize here?