title: v-cloak does not work in vue.js?
body: <p>There is a <code>div</code> in my page that for show the error message.When I refresh the page,it will appear for a while then it disappear. I added <code>v-cloak</code> but it doesn't work.</p>
  
  <p>this is the code, <code>showErrorMsg</code> is false</p>
  
  <pre><code>&lt;div v-cloak v-show="showErrorMsg" style="z-index:100" class="h5_tips tips_error"&gt;
    &lt;a href="#" v-on:click="showErrorMsg = false" class="del"&gt;&lt;i&gt;&amp;#xe906;&lt;/i&gt;&lt;/a&gt;
    &lt;p v-text="errorMsg"&gt;&lt;/p&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>How to fix this?</p>