如何响应从服务器Node.js/Express销毁所有Cookie？

app.get('/logout', function(req, res) {
  // 遍历所有的Cookie并销毁
  Object.keys(req.cookies).forEach(function(cookieName) {
    res.clearCookie(cookieName);
  });
  res.send('All cookies have been destroyed.');
});

app.get('/logout', function(req, res) {
  // 设置所有Cookie的过期时间为一个过去的时间
  Object.keys(req.cookies).forEach(function(cookieName) {
    res.setHeader('Set-Cookie', cookieName + '=; expires=Thu, 01 Jan 1970 00:00:00 GMT');
  });
  res.send('All cookies have been destroyed.');
});