title: Anchor tag download doesn't work on mobile
body: <p>I'm creating a mobile app using Ionic Framework, AngularJs, and Html.  There's a page where a user needs to click on a <code>&lt;div&gt;</code> to download a wallpaper, when I'm trying to click the download it works when I'm on the web browser debug mode using the <code>ionic serve</code> but when I try to create the apk and test it in the mobile, it doesn't work.  I have the following code on my html:</p>
  
  <pre><code>&lt;div class="dl-btn"&gt;
  &lt;a download="someFilename" href="img/download-wallpaper.jpg"&gt;
  &lt;img src="img/download.png" width="40%" height="auto" class="center"&gt;
  &lt;/a&gt;
  &lt;/div&gt;
  </code></pre>