Cross window js interaction between a popup and another window of the same domain

Question

I'm trying to open a popup from window a at example.com. then close window a and open another window b at the same domain (example.com). Is it possible to access the DOM of window a from window b and how?

The popup is opened from window a by

window.open('http://example.com/blah', 'somename', settings..), 

Executing the same from window b with a different url (shown below) works

window.open("http://example.com/blah2", "somename" ...) 

This seems to suggest windows are accessed by window name. But I could not find any way to access to DOM of the popup with or without the window's name. How would I do this?

Answer 1

Try something like

var newWind = window.open('http://example.com/blah', 'somename',settings);
if (newWind.opener == null) {
    newWind.opener = window;
}
// here you can access DOM of new window
var newDoc = newWind.document;