Caddyfile

:80 {
   log {
        output file /tmp/caddy.log
        level DEBUG
        format console
  }
  root * /Serve/frontend
  file_server
  encode gzip

  handle /api/* {
    reverse_proxy 127.0.0.1:27811 {
        header_up Host {http.request.host}
        header_up X-Real-IP {http.request.remote}
        header_up X-Forwarded-For {http.request.remote}
        header_up X-Forwarded-Port {http.request.port}
        header_up X-Forwarded-Proto {http.request.scheme}
    }
  }

  handle /gapi/* {
    reverse_proxy 127.0.0.1:27811 {
        header_up Host {http.request.host}
        header_up X-Real-IP {http.request.remote}
        header_up X-Forwarded-For {http.request.remote}
        header_up X-Forwarded-Port {http.request.port}
        header_up X-Forwarded-Proto {http.request.scheme}
    }
  }

  handle {
    try_files {path} /index.html
  }
}

:443 {
  root * /Serve/frontend
  file_server
  encode gzip

  handle /api/* {
    reverse_proxy 127.0.0.1:27811
  }

  handle /gapi/* {
    reverse_proxy 127.0.0.1:27811
  }

  handle {
    try_files {path} /index.html
  }
}