title: Spinner alert Ionic
body: <p>I want show an alert with a spinner in subTitle like:</p>
  
  <p><a href="https://i.stack.imgur.com/5au57.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/5au57.png" alt="enter image description here"></a></p>
  
  <p>I tryed, without success:</p>
  
  <pre><code>this.alertCtrl.create({
     title: 'Verificando',
     subTitle: '&lt;ion-spinner name="dots"&gt;&lt;/ion-spinner&gt; foo bar'
  });
  </code></pre>
  
  <p>Any ideas ?</p>