title: Showing Thumbnail for link in WhatsApp || og:image meta-tag doesn't work
body: <p>Tried to follow this question : <a href="https://stackoverflow.com/questions/19778620/provide-a-picture-for-whatsapp-link-sharing">Provide an image for WhatsApp link sharing</a></p>
  <p><a href="https://i.stack.imgur.com/PahaD.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/PahaD.jpg" alt="enter image description here" /></a></p>
  <p>I have created a simple HTML webpage with the basic Facebook metatags:</p>
  <pre><code>&lt;!--FACEBOOK--&gt;
  &lt;meta property=&quot;og:title&quot; content=&quot;San Roque 2014 Pollos&quot; /&gt;
  &lt;meta property=&quot;og:description&quot; content=&quot;Programa de fiestas&quot; /&gt;
  &lt;meta property=&quot;og:image&quot; content=&quot;http://pollosweb.wesped.es/programa_pollos/play.png&quot; /&gt;        
  </code></pre>
  <p>The Facebook linter validate correctly and in Facebook it shows perfect, but when I try to share by WhatsApp the image doesn't show.</p>
  <p>I'm trying it on <strong>WhatsApp on Android</strong></p>
  <p>→ <a href="http://pollosweb.wesped.es/whas.html" rel="noreferrer">This is the URL of the Sample Webpage</a></p>