how to access parent window javascript variable inside child window(pop-up)? [closed]

Question

I have html page which has global javascript variable with name custName="scott". I open the pop-up window with window.open.

Now if I access the custName inside pop-up window with window.opener.custName, I get values as undefined. How do I access parent window javascript variable inside child window(pop-up)?

Answer 1

window.opener.custName works. It was typo mistake.