window.top === window false condition in IE8
<p>For some reason, using the</p>

<pre><code>window.top === window
</code></pre>

<p>condition in IE8 always evaluates to false (in other browsers it works fine).
What is the reason for this, and is there any other way for this condition to work cross-browser?</p>

<p>Thanks,</p>

<p>Joel</p>
