pushHistory();
        window.addEventListener("popstate", function (e) {
            //pushHistory();
            window.location.href = "http://"+hostPath+"/a.html?b=1#";
        }, false);
        function pushHistory() {
            var state = {
                title: "title",
                url: "#"
            };
            window.history.pushState(state, "title", "#");
        }