I am using YTplayer plugin for fullscreen youtube player in this-website Get inspired tab!
https://github.com/pupunzi/jquery.mb.YTPlayer
http://pupunzi.open-lab.com/mb-jquery-components/jquery-mb-YTPlayer/
http://pupunzi.com/#mb.components/mb.YTPlayer/YTPlayer.html
<a class="player" id="player" data-property="{
videoURL: 'https://www.youtube.com/watch?v=j9fgbuH0_RI&feature=youtu.be',
containment:'#videobg',
autoPlay: true,
optimizeDisplay: true,
showControls: true,
startAt: 0,
opacity: 1,
ratio: '4/3',
addRaster: false }"></a>
<div id="videobg" class="section-divider white-text videobg" data-scroll-index="4">
<div class="pattern-overlay"></div>
<div class="triangle-right"></div>
<div class="container extra-padding">
<div class="col-md-5 extra-padding">
<h1>INNOVATING THROUGH TRAVEL</h1>
<p>Travel is more than the seeing of sights; it is a change that goes on, deep and permanent, in the ideas of living.</p>
</div>
</div>
</div>
EDIT
Seem the problem is from the repo jquery.mb.YTPlayer. If we look at the issue https://github.com/pupunzi/jquery.mb.YTPlayer/issues/49
Be sure you have the last version of the repo.
After reading the doc from the repo, try to replace : autoPlay: true,
by autoplay: true,
Final code :
<a class="player" id="player" data-property="{
videoURL: 'https://www.youtube.com/watch?v=j9fgbuH0_RI&feature=youtu.be',
containment:'#videobg',
autoplay: true,
optimizeDisplay: true,
showControls: true,
startAt: 0,
opacity: 1,
ratio: '4/3',
addRaster: false }"></a>
<div id="videobg" class="section-divider white-text videobg" data-scroll-index="4">
<div class="pattern-overlay"></div>
<div class="triangle-right"></div>
<div class="container extra-padding">
<div class="col-md-5 extra-padding">
<h1>INNOVATING THROUGH TRAVEL</h1>
<p>Travel is more than the seeing of sights; it is a change that goes on, deep and permanent, in the ideas of living.</p>
</div>
</div>
</div>