JSFiddle - React, Tailwind, and code Playground

HTML

<iframe id="iframe" src="javascript:''"></iframe>

JavaScript

var document = $("#iframe").contents()[0];

document.designMode = "on";
document.open();
document.write("<!doctype html><html><head><title></title></head><body></body></html>");
document.close();
document.designMode = "off";
document.body.innerHTML = '<div contenteditable="false"><iframe width="560" height="315" src="http://www.youtube.com/embed/ccFuwT6RKX0?&fs1&feature=oembed&wmode=transparent" frameborder="0" allowfullscreen></iframe></div>';

document.designMode = "on";