This makes development simpler since we don't need an additional
server to serve the static files, (on our production machine, we do
have a separate web server for the static files).
const app = express();
+/* Serve static files from the lmno.games directory for local development. */
+app.use(express.static(path.join(__dirname, '..', 'lmno.games')));
+
/* This 'trust proxy' option, (and, really? a space in an option
* name?!) means that express will grab hostname and IP values from
* the X-Forwarded-* header fields. We need that so that our games