preserve state by using boolean variable and $router.go()

src/components/Menu.vue

@@ -103,7 +103,7 @@ export default {
     watch: {
     $route(to, from) {
       if (to.name == "about" && from.name != to.name) {
-        this.$store.commit('setDictRoute', from.fullPath)
+        this.$store.commit('toggle', 'aboutOpen')
       }
     }
   }

src/components/TopBar.vue

@@ -6,7 +6,7 @@
       <v-spacer/>
       <v-divider vertical/>
       <v-toolbar-items v-if="$route.name == 'about'">
-      <v-btn text @click.native="back" v-if="$store.state.dictRoute">{{$t('close')}}<v-icon right>close</v-icon></v-btn>
+      <v-btn text @click.native="back" v-if="$store.state.aboutOpen">{{$t('close')}}<v-icon right>close</v-icon></v-btn>
       <v-btn text v-else @click.native="home">Søk i ordbøkene<v-icon right>search</v-icon></v-btn>
       </v-toolbar-items>
       <v-toolbar-items>
@@ -58,8 +58,8 @@ export default {
         this.$router.push('/')
       },
       back: function() {
-        this.$router.push(this.$store.state.dictRoute)
-        this.$store.commit('setDictRoute', null)
+        this.$router.go(-1)
+        this.$store.commit('toggle', 'aboutOpen')
       }
 
     },

src/main.js

@@ -94,7 +94,7 @@ const store = new Vuex.Store({
     menuOpen: false,
 
     searchRoute: null,
-    dictRoute: null,
+    aboutOpen: false
     
   },
   mutations: {
@@ -137,9 +137,6 @@ const store = new Vuex.Store({
     },
     setSearchRoute(state, path) {
       state.searchRoute = path
-    },
-    setDictRoute(state, path) {
-      state.dictRoute = path
     }
   }
 })