popup - How to find modal dialog opener from javascript? -

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I have a page that opens a modal dialog. After the work done on the conversation, I want to refresh the opening page. But when I open the popup using "OpenDialog" then I click on the window on the popup page Can not reach the opener using the opener. When I wanted to access it appears "undefined" (I do not want to use the "popup" method in this case. I think this method should be a dialog. Using "popup" is my second plan.)

What is the best practice to get rid of this issue?


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