HistoryQuery.js

// get a query object from query string
function getQuery(str) {
    var q = {}; if (str == '') { return q }; try { str.substr(1).split("&").forEach(function(item) { q[item.split("=")[0]] = item.split("=")[1]}); } catch (err) { } finally { return q };
}

// get a query string from a query object
function setQuery(obj) {
    var s = ''; for (k in obj) { s += '&'+ k + '=' + obj[k] }; return s ;
}

function justifyQuery(url){
    return url.replace(/[&?]{1,2}/, '?')
}

// Hooking the History page So that we can get the correct 
if (window.history) {
    var q = getQuery(location.search)
    if (q.hasOwnProperty('goto_status') ){
       
        if (q.goto_status == 1 ) {
            location.replace(location.origin + '/inc/mall/my/myAddr')
        }
        delete q.goto_status
        var u=setQuery(q);
        u = u.replace(/[&?]{1,2}/, '?')
        window.history.replaceState({redirect:url } , '确认礼物', location.pathname + u )

    } else if (q.hasOwnProperty('go')){ 
        $.showTip('你已接受过该礼物')
        setTimeout(function(){
            window.history.go(q.go) 
        }, 0)
    } else {
        var url = (location.pathname + location.search + '&go=-1').replace(/[&?]{1,2}/,'?')
        window.history.replaceState({redirect:url } , '确认礼物', url)
    }
}