function insertVideojs() {

var id = 'refinerycms-videojs';
var videojs = document.querySelector('script#' + id);
var videocss = document.querySelector('link#' + id);

if (videojs) videojs.remove();
if (videocss) videocss.remove();

var head = document.getElementsByTagName('head')[0];
var link = document.createElement('link');
var script = document.createElement('script');

link.id = id;
link.rel = 'stylesheet';
link.type = 'text/css';
link.href = 'https://vjs.zencdn.net/7.6.6/video-js.css';
script.id = id;
script.src = 'https://vjs.zencdn.net/7.6.6/video.js';

head.appendChild(link);
head.appendChild(script);

};

document.addEventListener(“DOMContentLoaded”, insertVideojs); document.addEventListener(“turbolinks:load”, insertVideojs);