title: Sitecore FXM issue - parent selector is missing in Add to Placeholder dialog
body: <p>I am trying to use Federated Experience Manager with an external website. The static website has a JS beacon, so now I am able to open external page with Experience Editor. </p>
  
  <p>The issue happens when I try to add a placeholder to that external static page (as per guide), parent dropbox do not present, so I am not able to create a placeholder and any other operations FXM allows.</p>
  
  <p><a href="https://i.stack.imgur.com/RTn58.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/RTn58.png" alt=""></a></p>
  
  <p>Is that a bug of Sitecore? I am on 8.0 Update 5 </p>