Is It Possible To Detect The User Click Event In The Popup Window?

I can detect the user click event in the popup window if the current url and popup url is in same domain using the following code: var myWindow = window.open('abc.html','MsgWindow'

Solution 1:

No you can't becouse of SOP (Same Origin Policy) http://en.wikipedia.org/wiki/Same-origin_policy

To give you an example: You make a popup to a webpage with a login. With your method you are able to track the key input of the login information. username and password. Thats would be a major secutiry issue.