Hapi.js无法读取null的属性“statusCode”

// 创建一个Hapi.js服务器
const Hapi = require('@hapi/hapi');
const server = Hapi.server({
  port: 3000,
  host: 'localhost'
});

// 定义一个路由处理程序
const handler = (request, h) => {
  // 检查响应对象是否为null
  if (request.response && request.response.statusCode) {
    // 读取statusCode属性
    const statusCode = request.response.statusCode;
    return `Response status code: ${statusCode}`;
  } else {
    return 'Error: Unable to read statusCode property';
  }
};

// 定义一个路由
server.route({
  method: 'GET',
  path: '/',
  handler: handler
});

// 启动服务器
const startServer = async () => {
  try {
    await server.start();
    console.log('Server running at:', server.info.uri);
  } catch (err) {
    console.error('Error starting server:', err);
  }
};

startServer();