I just can't seem to locate what's wrong with this video snippet.
<video poster="sample.jpg" loop autoplay controls muted playsinline>
<source type="video/webm" src="sample.webm"></source>
<source type="video/mp4" src="sample.mp4"></source>
Google Chrome currently has a bug in which it will not autoplay a
.webmvideo if it comes after anything else. Try to use a code published at: http://thenewcode.com/777/Create-Fullscreen-HTML5-Page-Background-Video
If previous advise does not help, try to use scripted playback examples (
simpl) on Github:
Also, read the issue dedicated to muted autoplay in mobile browsers:
It must be useful to read S.O. post as well:
¡Hope this helps!