title: How to hide SFSafariViewController?
body: <p>SFSafariViewController allows a webpage to access cookie stored in Safari. I would like to perform some background task with SFSafariViewController to utilize the cookie. However I do not want the user to see the SFSafariViewController.</p>
  
  <p>Is there a way to hide SFSafariViewController and allow user to touch the screen when SFSafariViewController is presented?</p>