title: Vue.js Syntax Error (SCRIPT1003) IE11 and lower
body: <p>When i try my vue.js app in IE11 or lower i get Error SCRIPT1003 excepted : in the console which points to routeContent. My Snytax looks like this:</p>
  
  <pre><code>var store = new Vuex.Store({
      state: {
          routeContent: null
      },
      mutations: {
          routeContent(state, payload) {
              state.routeContent = payload
              document.title = payload.title
          }
      }
  })
  </code></pre>