如何在extjs中获得父窗口或在extjs中获得等效的window.opener？

Question

I am launching a window using HtmlPage.Window.Navigate(Uri, "_blank"); from silver light. I want to notify silverlight app from extjs unload event.

I am trying with window.opener from my extjs code in app.js

Ext.EventManager.on(window, 'beforeunload', function () {
            //window.opener is undefined here
            }

Is there any extjs equivalent for window.opener? Or How to get the parent window from extjs? I am trying with the sample http://www.codeproject.com/Articles/293515/Calling-Silverlight-Method-from-Javascript-and-Jav for calling silverlight method from javascript?

Answer 1

I don't think this is an ExtJS issue but rather browser support.

Take a look at this question: window.opener alternatives