scripts may close only the windows that were opened by them.

调用window.close() 无效 并在控制台看到如下警告
scripts may close only the windows that were opened by them.
可使用以下代码

let userAgent = navigator.userAgent;
if (userAgent.indexOf("Firefox") != -1 || userAgent.indexOf("Chrome") !=-1) {
    location.href="about:blank";
} else {
    window.opener = null;
    window.open('', '_self');
}
window.close();