title: Video playback in Swift from URL
body: <p>I am currently trying to play a video on iOS from a URL in Swift. URLs with endings like ".mp4" or ".m4v" work, but when I try to play a shared video link from Dropbox it doesn't.
  I already changed the ending of the Dropbox link to "dl=1" but anyway nothing happens.</p>
  
  <p>Playing a Youtube-video in a webview is not a solution for me, because I want the native iOS player.</p>
  
  <p>Does anyone know what to do to play URLs from Dropbox or maybe recommend cloud services where this does work?</p>
  
  <p>Thank you!</p>