can't write to a new popup in javascript
<p>I write a firefox addon.
I have the code:</p>

<pre><code>var myWindow=window.open('','_blank','width=200,height=100');
myWindow.document.write("&lt;p&gt;lala&lt;/p&gt;");  
</code></pre>

<p>the window does created but there is nothing written to it.
why is that ?</p>
