title: Link previews in Facebook Messenger bot using MS BotFramework
body: <p>I'm using the node.js botFramework from Microsoft to create a Facebook Messenger bot.</p>
  
  <p>Everything is working fine except when the bot sends the user a link. The link is shown in the chat window but FB does not generate any preview for it.</p>
  
  <p>Is there a way to configure the app/bot or the message my app sends back so that the link preview is generated? </p>