failed connection to graph.facebook port 443 during login with facebook application
<p>I start to developing an app with login page, and I try to use "facebook login", but I got the following error:</p>

<blockquote>
  <p>Facebook SDK returned an error: Failed to connect to graph.facebook.com port 443: Connection refused</p>
</blockquote>

<p>I created the app with PHP using code from github.</p>

<p>someone can help me please?</p>