I have been struggling with the same problem for several days while developing. I open a pop-up window while implementing the identity authentication function now, and when authentication is completed in the pop-up window, the result value is supposed to be thrown to the parent window, and the pop-up window should be closed. I use 'window.opener' to close the popup window, but the problem is that it doesn't work on IE11. If you register the popup url on the list of trusted sites in the internet options, this function works perfectly. However, I think this is very inconvenient for users, so I want to solve this problem. If you know how to solve this problem, please leave your comment.