JSFiddle - React, Tailwind, and code Playground

HTML

<iframe id='target' src='about:blank'></iframe>
<div id='target2'></div>

JavaScript

var html='<div class="t-page-title">View Thread<\/div><script>alert("hello");<\/script>';
var ifr=document.getElementById("target");
var div=document.getElementById("target2");

ifr.src="javascript:'"+html+"'";
//div.innerHTML=html;