如何清除所有选项卡中的sessionStorage？

// 获取所有打开的选项卡
navigator.serviceWorker.getRegistrations().then(function(registrations) {
  registrations.forEach(function(registration) {
    // 清除sessionStorage
    registration.active.postMessage({command: 'clearSessionStorage'});
  });
});

// 在每个选项卡中监听消息
self.addEventListener('message', function(event) {
  if (event.data && event.data.command === 'clearSessionStorage') {
    // 清除sessionStorage
    sessionStorage.clear();
  }
});

// 创建Broadcast Channel
var channel = new BroadcastChannel('sessionStorageChannel');

// 发送消息给其他选项卡
channel.postMessage({command: 'clearSessionStorage'});

// 监听消息
channel.onmessage = function(event) {
  if (event.data && event.data.command === 'clearSessionStorage') {
    // 清除sessionStorage
    sessionStorage.clear();
  }
};