title: Nuxt.js double link after refresh
body: <p>When it generates production code width 'npm run generate' i have error.</p>
  
  <p>In this website <a href="http://vue.wmcreation.pl/about" rel="nofollow noreferrer">http://vue.wmcreation.pl/about</a></p>
  
  <p>when i refresh page nuxt add to boostrap nav link /about/about.</p>
  
  <pre><code>     &lt;b-navbar toggleable="md"&gt;
  
            &lt;b-navbar-toggle target="nav_collapse"&gt;&lt;/b-navbar-toggle&gt;
  
            &lt;b-navbar-brand :to="{ path: '/' }"&gt;#jwcreation&lt;/b-navbar-brand&gt;
  
            &lt;b-collapse is-nav id="nav_collapse"&gt;
  
              &lt;b-navbar-nav class="center"&gt;
  
                &lt;b-nav-item :to="{ path: '/' }"&gt;home&lt;/b-nav-item&gt;
                &lt;b-nav-item :to="{ path: 'about' }"&gt;about&lt;/b-nav-item&gt;
              &lt;/b-navbar-nav&gt;
  
              &lt;!-- Right aligned nav items --&gt;
              &lt;b-navbar-nav class="right"&gt;
                &lt;b-nav-item :to="{ path: 'test' }"&gt;hello@jwcreation.pl&lt;/b-nav-item&gt;
  
              &lt;/b-navbar-nav&gt;
  
            &lt;/b-collapse&gt;
          &lt;/b-navbar&gt;
  </code></pre>