JavaScript的alert与confirm隐藏弹窗的网址

(function () {
    //隐藏弹窗的网址，改后alert与confirm 在IE浏览器下无反应，需判断是否为IE
    //改变alert
    window.alert = function (name) {
        var iframe = document.createElement("IFRAME");
        iframe.style.display = "none";
        iframe.setAttribute("src", 'data:text/plain');
        document.documentElement.appendChild(iframe);
        window.frames[0].window.alert(name);
        iframe.parentNode.removeChild(iframe);
    }
    //改变confirm
    window.confirm = function (name) {
        var iframe = document.createElement("IFRAME");
        iframe.style.display = "none";
        iframe.setAttribute("src", 'data:text/plain');
        document.documentElement.appendChild(iframe);
        window.frames[0].window.confirm(name);
        iframe.parentNode.removeChild(iframe);
    }
})();

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