title: Vimeo video autoplay not working in Safari 11: NotAllowedError
body: <p>Since the last Safari update to version 11, some videos stopped working.
  The worst is that sometimes, like once in five attempts, it works.
  I thought that the reason is my JS script that integrates Vimeo Player API but it ends up that even Vimeo's embed link doesn't work at all. </p>
  
  <p>So, when you open embed video in Safari 11 it won't start and it blocks completely. You can see it by opening i.e. 
  <a href="https://player.vimeo.com/video/XXXXXXXX?autoplay=1" rel="nofollow noreferrer">https://player.vimeo.com/video/XXXXXXXX?autoplay=1</a></p>
  
  <p>In console log you can get something like:</p>
  
  <p><code>Unhandled Promise Rejection: NotAllowedError (DOM Exception 35): The request is not allowed by the user agent or the platform in the current context, possibly because the user denied permission.</code></p>