Javascript error in IE9
<p>Any body has any idea about this error,</p>

<blockquote>
  <p>TypeError: Unable to get value of the property 'pop': object is null or undefined:</p>
</blockquote>

<p>Hi bru.scopelliti,</p>

<p>Here the code is:</p>

<pre><code>someNode.innerHTML = _self.errorMessage + " : " + ioArgs.xhr.status + " : " +response.responseText;
</code></pre>

<p>The thing is the response object doesn't have responseText</p>
