通过localStorage和self.window.name的组合，您可以确定其他窗口/选项卡是否由同一用户使用。

if (!localStorage.getItem('windowName')) { 
    // first visit
    self.window.name = (new Date()).getTime(); 
    localStorage.setItem('windowName', self.window.name);   
} 

if (localStorage.getItem('windowName') && localStorage.getItem('windowName') !== self.window.name) { 
    // i know you, but it's a different window
    console.log('new window'):
    // do stuff, unbind, delete, ... whatever you need to do
    self.window.name = (new Date()).getTime(); 
}