window.open.. A way to tell if the window had a timeout or 404?
<p>Ive been making a webpage that uses a sort of... external survey taking. I was wonder if when using the window.open method, can you tell if your new window had a 404 or the page timedout trying to load?</p>

<p>Here is what i have so far:</p>

<pre><code>child = window.open(href, 'window');
        setTimeout(function() {
            // Do some backend processing if child window is still open and no 404 / timeout
        }, 10000);
</code></pre>
