title: Muted autoplay videos stop playing in Safari 11.0
body: <p>I have these videos on my site with attributes listed below:</p>
  
  <pre><code>&lt;video width="100%" poster="poster_url.png" autoplay loop muted playsinline&gt;
  &lt;source src="video_url.mp4" type="video/mp4"&gt;
  &lt;/video&gt;    
  </code></pre>
  
  <p>Everything worked just fine until I’ve installed Safari 11. This version shows poster images and does not autoplay videos even though they don't have an audio track. Take a look at it on my <a href="http://www.grabelnikov.com/#plentiful" rel="noreferrer">site</a>.</p>
  
  <p>I saw autoplay videos working <a href="http://www.elirousso.com/" rel="noreferrer">on other sites</a> (even without muted property) on my own laptop in Safari.</p>
  
  <p>Any help would be greatly appreciated!</p>