Vue Router Authentication

const app = {  name: 'My App',  version: '1.0.1',  isAuthenticated: false}Vue.prototype.$app = app// TODO: check is authenticated// app.isAuthenticated = true

router.beforeEach((to, from, next) => {  if (to.fullPath === '/about') {    next()    return  }  const isAuthenticated = Vue.prototype.$app.isAuthenticated  if (!isAuthenticated && to.fullPath !== '/signin') next('/signin')  else next()})