JSFiddle - React, Tailwind, and code Playground

by fangunxs

HTML

iframe source code: <br />
<textarea id="output" rows="20" cols="60">loading ...</textarea>

JavaScript

var iframe = document.createElement('iframe');
iframe.id = iframe.name = "testframe";
iframe.src = "http://fiddle.jshell.net";
iframe.width = 400;
iframe.height = 100;
iframe.style.display = "none";

if (iframe.addEventListener)
    iframe.addEventListener("load", loaded, false);
else
    iframe.attachEvent("onload", loaded);

function loaded() {
    alert(1);
    var html;
    if (iframe.contentDocument)
        html = iframe.contentDocument.getElementsByTagName("HTML")[0].innerHTML;
    else
        html = window.frames[iframe.name].document.getElementsByTagName("html")[0].innerHTML;
    
    document.getElementById("output").value = html;
}

document.getElementsByTagName("body")[0].appendChild(iframe);