RequestContext is not set in RequestContextHolder when AjaxHandler.sendAjaxRedirect is called.

I need some attribute to setup the popup level in my view.

So as explain in the Forum :

I define a custom AjaxHandler. In this handler I need to get information about ViewScope, FlowScope and so on,
BUT when the AjaxHandfler method is called, none of attributes/parameters set in the flow are merge with the request or session.