Jsブラウザページの返却を停止します.

$(document).ready(function(e) { 
    var counter = 0;
    if (window.history && window.history.pushState) {
        $(window).on('popstate', function () {
            window.history.pushState('forward', null, '#');
            //window.location.href="ad.html";   //          
            window.history.forward(1);
            alert("    ");
        });
    }

    window.history.pushState('forward', null, '#'); // IE        
    window.history.forward(1);
});