Static version

layouts/default.vue

 <template>
 <div>
+<client-only>
 <nav class="navbar navbar--simple __js-root">
   <div class="container container--wide navbar__content" :class="{'navbar__content--initialized': true}">
 
@@ -53,6 +54,7 @@
 <Nuxt/>
 </section>
 
+</client-only>
 </div>
 </template>
 

nuxt.config.js

 export default {
-//  target: 'static',
+  target: 'static',
 
   modules: [
     '@nuxtjs/dotenv',