message: Use sendFile instead of sendfile
diff: @@ -58,7 +58,7 @@ app.post('/invoke', express.json(), async (req, res) => {
  });
  app.use(express.static(buildDir));
  -app.use((_req, res) => res.sendfile(pathResolve(buildDir, 'index.html')));
  +app.use((_req, res) => res.sendFile(pathResolve(buildDir, 'index.html')));
  export type HTTPHandler = (req: http.IncomingMessage, res: http.ServerResponse) => void;
  