title: 'WebForm_DoPostBackWithOptions' is undefined in IE11 Preview
body: <p>IE11 is coming. I just installed the developer preview version. However, if I run some of my web application and I got the error <em><code>WebForm_DoPostBackWithOptions</code> is undefined</em>.</p>
  
  <p>The error popped up when I was playing with the autopostback <code>DropDownList</code>.</p>
  
  <p>Moreover, it looks like there was a similar issue with IE10 before:</p>
  
  <p><a href="http://www.hanselman.com/blog/BugAndFixASPNETFailsToDetectIE10CausingDoPostBackIsUndefinedJavaScriptErrorOrMaintainFF5ScrollbarPosition.aspx">http://www.hanselman.com/blog/BugAndFixASPNETFailsToDetectIE10CausingDoPostBackIsUndefinedJavaScriptErrorOrMaintainFF5ScrollbarPosition.aspx</a></p>