如何确保用户在计算机进入睡眠状态时使用Web Worker注销

如果用户离开网络并注销的时间超过10分钟,记录下来怎么样?

let blurTime;

window.onblur = function() {
    blurTime = Date.now();
};

window.onfocus = function() {
    const focusTime = Date.now();
    const timeDifference = focusTime - blurTime;

    if (timeDifference > 10 * 60 * 1000) {
        logoutUser();
    }
};