Closing Test CAS Configuration window throws TypeError: a._opener is undefined

• Type: Regression Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 6.2.X EE, 7.0.0 M3
• Fix Version/s: 6.2.X EE, 7.0.0 M3
• Component/s: Application Security, Application Security > CAS, ~ [Archived] Frontend Infrastructure
• Labels:
  • security-filter-bugs
• Branch Version/s:
  6.2.x
• Backported to Branch:
  Committed
• Story Points: 5
• Fix Priority: 4
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal-ee/pull/11141

Steps to reproduce:
1. Navigate to Control Panel > Portal Settings > Authentication > CAS
2. Click 'Test CAS Configuration' button
3. With Firebug console open, close the 'Test CAS Configuration' window

Expected result:
Closing the window does not result in a java script error.

Actual result:
Closing the window results in a java script error.