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    $(document).ready(function (e) {
        var counter = 0;
        if (window.history && window.history.pushState) {
            $(window).on('popstate', function () {
                window.history.pushState('forward', null, '#');
                window.history.forward(1);
                // alert("不可回退");  //如果需在弹框就有它
                self.location="orderinfo.html"; //如查需要跳转页面就用它
            });
        }

        window.history.pushState('forward', null, '#'); //在IE中必须得有这两行
        window.history.forward(1);
    });
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