title: Facebook share URL with get parameters
body: <p>I'm trying to generate a share URL with get parameters and it's doing some double encoding shenanigans.</p>
  
  <pre><code>&lt;a href="http://www.facebook.com/share.php?u=http%3A%2F%2Fwww.bing.com%2Fsearch%3Fq%3Dkeyword" /&gt;
  </code></pre>
  
  <p>produces an error url while</p>
  
  <pre><code>&lt;a href="http://www.facebook.com/share.php?u=http%3A%2F%2Fwww.bing.com" /&gt;
  </code></pre>
  
  <p>is fine.  Anyone have ideas?</p>