title: does vaadin video component support preload attribute
body: <p>I have more than 10 mp4 videos which I am tying to embed in my web application using vaadin video component. When I run my application on Edge/IE the vidoes work fine, but on chrome they dont. Its known issue with chrome where if the page has more than 6-8 mp4 videos, it hangs as it tried to preload all of them together.
  I was wondering if the video component provide me option to set the preload to none. I can see the mediabase has this option
  <a href="https://vaadin.com/api/7.6.7/index.html?com/google/gwt/media/client/MediaBase.html" rel="nofollow noreferrer">https://vaadin.com/api/7.6.7/index.html?com/google/gwt/media/client/MediaBase.html</a>
  But I dont see it for video.
  Also I found another link where they seems to do the fix <a href="https://github.com/vaadin/framework/issues/5178" rel="nofollow noreferrer">https://github.com/vaadin/framework/issues/5178</a> , but couldnt make it work.</p>
  
  <p>Any help?</p>