Right now, I redirected all the HTTP urls to HTTPS using this code in my nginx config:

server {
  server_name domain.com
  listen 80;

  location /asset/ {
    # make files under asset directory (recursively) be available over HTTP too
  }

  location / {
    rewrite ^ https://$server_name$request_uri? permanent;
  }
}

How can I make files under asset directory (recursively) be available over HTTP too?