In IE 11 browser intermittently "undefined" is displayed instead of logged in users name.

Document ID : KB000012868
Last Modified Date : 14/02/2018
Show Technical Document Details
Introduction:

In IE 11 browser intermittently "undefined" is displayed instead of logged in users name and after which it doesn't allow user to perform any activity followed by a pop-up window with message "Unable to get the popup window size"

Question:

Why sometimes users see "undefined" instead of their name as logged in user in IE 11 and it doesn't allow them to perform any activity displaying another pop-up window with message "Unable to get the popup window size"?

Environment:
? CA Service Desk Manager 12.9 ? CA Service Desk Manager 14.1
Answer:

This behavior is mainly seen when "Enterprise Mode" is enabled in IE 11.

It is advised to disable it from users browser settings and also check if this feature is pushed as a group  policy by windows administrator.

Once disabled with default IE settings this behavior will no longer be seen.