Vue-router 2改变路由，但不更新视图

我有一个登录问题的网站使用:

• Vue.js v2.0.3
• vue-router v2.0.1
• vuex v0.8.2

在routes.js中，我有一个简单的拦截器设置

router.beforeEach((to, from, next) => {
if (to.matched.some(record => record.meta.requiresAuth)) {
    // this route requires auth, check if logged in
    // if not, redirect to login page.
    if (!router.app.auth.isUserLoggedIn) {
        next({
            path: '/login',
            query: { redirect: to.fullPath }
        })
    } else {
        next()
    }
} else {
    next() // make sure to always call next()!
}

})

在login.vue中，它在使用Google API后处理登录页面逻辑，仅用于登录成功，我调用此:

this.login(userData).then( 
    () => this.$router.push(this.redirectToAfterLogin), // Login success
    () => {} // Login failed
)

mounted: function(){
if (this.auth.isUserLoggedIn){
            // Let's just redirect to the main page
            this.$router.push(this.redirectToAfterLogins)
        }else{
            Vue.nextTick(() => {
                this.loadGooglePlatform()
            })}}

computed: {
        redirectToAfterLogin: function() {
            if (this.$route.query.redirect){
                return this.$route.query.redirect
            }else{
                return '/'
            }
        }
    }

router.js

var VueRouter = require('vue-router')
// Router setup
export const router = new VueRouter({
    linkActiveClass: "is-active",
    mode: 'history',
    saveScrollPosition: true,
    routes: [
        { path: '', name: 'root', redirect: '/home' },
        { path: '/login', name: 'login', meta: { loadingNotRequired: true }, component: require('./pages/login.vue') },
        { path: '/logout', name: 'logout', meta: { loadingNotRequired: true }, component: require('./pages/logout.vue') },
        { path: '/home', name: 'home', title: 'Home', redirect: '/home/random', component: require('./pages/home.vue'),
            children: [
                { path: 'random', name: 'random', meta: { requiresAuth: true }, title: 'Random', component: require('./pages/random.vue') }
            ]  
        }
    ]
})
// Redirect to login page if not logged In
router.beforeEach((to, from, next) => {
    if (to.matched.some(record => record.meta.requiresAuth)) {
        // this route requires auth, check if logged in
        // if not, redirect to login page.
        if (!router.app.auth.isUserLoggedIn) {
            next({
                path: '/login',
                query: { redirect: to.fullPath }
            })
        } else {
            next()
        }
    } else {
        next() // make sure to always call next()!
    }
})

现在这里this.login只是调用vuex，更新登录的用户。

登录后，URL将更改为/home，但DOM没有更新!

成功改变DOM的唯一方法是强迫location.reload()，这不是我想做的，因为它失去了我在Head中动态加载的G脚本。

有什么办法来强制视图更新DOM吗?

注意:它只发生在用户的第一次登录，如果他注销和重新登录，重定向是好的