title: SSL error when apache reverse proxied application is included via iframe
body: <p>I have a host behind a firewall and running a web application (app1) should include an iframe from another web application (<a href="https://www.example.com/app2" rel="nofollow">https://www.example.com/app2</a>) hosted on a second (internal) server.</p>
  
  <p>What I want to do is configure the Apache hosting app1 to act as reverse proxy doing the following:</p>
  
  <pre><code>ProxyPass /app2 http://internal-ip-app2/app2
  ProxyPassReverse /app2 http://internal-ip-app2/app2
  </code></pre>
  
  <p>I have only one DNS entry which is <code>www.example.com</code>
  So, the URLs to the apps are:</p>
  
  <pre><code>https://www.example.com (app1)
  https://www.example.com/app2 (app2)
  </code></pre>
  
  <p>Each of those works for itself, but not if included via iframe. This results in an SSL handshake error.</p>
  
  <p>Any ideas on howto set this up correctly?</p>