mensa/src/router/index.js

import Vue from 'vue'
import Router from 'vue-router'
import Mensa from '@/components/Mensa'

Vue.use(Router)

export default new Router({
  mode: 'history',
  routes: [
    {
      path: '/',
      name: 'Mensa',
      component: Mensa
    },
    {
      path: '/:mensa/:tag',
      component: Mensa
    }
  ]
})