Iframe inside Iframe cant do changes
<p>I have one iframe inside on iframe and with this code i want to change the src of an image</p>

<pre><code>window.top.frames[0].frames[0].document.getElementById("maquina").src = "https://developer.cdn.mozilla.net/media/img/mdn-logo-sm.png";
</code></pre>

<p>and when i try it it work but i cant see changes in the page, only in code when e read .src
of that element</p>
