title: Getting Facebook original image url
body: <p>I want to get the the original picture out of this Facebook link:</p>
  
  <pre><code>https://fbexternal-a.akamaihd.net/safe_image.php?d=AQCPdu0qFIMkMPGN&amp;w=470&amp;h=246&amp;url=https%3A%2F%2Fscontent-lax3-1.xx.fbcdn.net%2Fhphotos-xfp1%2Fv%2Ft1.0-9%2F12705743_10153625263299678_1238692121976712825_n.jpg%3Foh%3D0f330b83cd6f52cba12b06ea141af571%26oe%3D5723078F&amp;cfs=1&amp;upscale=1&amp;sx=1&amp;sy=0&amp;sw=558&amp;sh=292&amp;ext=png2jpg
  </code></pre>
  
  <p>What I usually do is get the value of <code>url</code> parameter and decode it to get the S3 link.
  The result of applying this to this link is </p>
  
  <pre><code>https://scontent-lax3-1.xx.fbcdn.net/hphotos-xfp1/v/t1.0-9/12705743_10153625263299678_1238692121976712825_n.jpg
  </code></pre>
  
  <p>But it gives me 403 response. How should I obtain the link of the original photo?</p>