JSFiddle - React, Tailwind, and code Playground

JavaScript

var html = "<html><head><title>Some Text</title></head><body><h1>My First Heading</h1><p>My first paragraph.</p></body></html>",
    docFrag = document.createDocumentFragment(),
    el = document.createElement('html');

el.innerHTML = html;
docFrag.appendChild(el);

var text = docFrag.querySelector('title').textContent;
console.log(text);