用户新开浏览器tab重复登录的时候给于提示

const key = `open${Date.now()}`;
    window.onstorage = function(e) {
      if(e.key=='username' && e.newValue){
        console.log('The ' + e.key + ' key has been changed from ' + e.oldValue + ' to ' + e.newValue + '.');
        if(window.APP){
         // window.APP.$message.error('Your current account ' + e.oldValue + ' have been logout. ');
          window.APP.$notification['warning']({
                  message: 'Notification',
                  class:"warning",
                  placement:"bottomRight",  //topLeft topRight bottomLeft bottomRight
                  duration: 0,
                  description:'Your current account ' + e.oldValue + ' have been logout. ',
                  btn: h => {
                      return h(
                        'a-button',
                        {
                          props: {
                            type: 'primary',
                            size: 'small',
                          },
                          on: {
                            click: () => {
                              window.APP.$notification.close(key);
                              location.reload();
                            }
                          },
                        },
                        'Reload',
                      );
                  },
                  key:key
                });
 
        }
      }
    };