页面切换到后台，再切回时跳转页面

    document.addEventListener('visibilitychange', function () {
        let pageVisibility = document.visibilityState;
        // 页面变为不可见时触发
        if (pageVisibility == 'hidden') {
            console.log("离开时间点：" + new Date());
        }
        // 页面变为可见时触发
        if (pageVisibility == 'visible') {
            window.location.href = "https://dh.new-game.cn/index/index/episodeSuccess";
        }
    })