title: facebook share image size issue
body: <p>I am struggling with a facebook image size problem,</p>
  
  <p>while Iam sharing the images on FB its took only small sizes(thumbnails). even i share a high resolution image (1600x1200 or 900x400) all sizes its resizing.</p>
  
  <p>sharing with following codes.</p>
  
  <pre><code>&lt;a class="btn" target="_blank" href="http://www.facebook.com/sharer.php?s=100&amp;amp;p[title]=sample title&amp;amp;p[summary]=custom summary&amp;amp;p[url]=domainname&amp;amp;p[images][0]=http://hidefwalls.com/wp-content/g/high-resolution/high-resolution-14-xooacj0rr2-1600x1200.jpg"&gt;share on facebook&lt;/a&gt;
  </code></pre>
  
  <p>So my question is is there any way to share a large image size (at least 400x209).
  I followed many <a href="http://www.jonloomer.com/2013/09/11/facebook-link-thumbnail-image-dimensions/" rel="nofollow">links</a> but non of the help me.</p>
  
  <p>Also Please let me know any option to restrict an image that shows in share options.?</p>
  
  <p>Thanks in advance</p>