IsPortletBlankFix.js
What is IsPortletBlankFix.js? It does not seem to be documented anywhere.
It shows up in the twsiebellog:
13:55:00 Request 3-18 GET "/23030/scripts/siebel/custom/IsPortletBlankFix.js" status 404.
13:55:00 Session 3 closed by server.
(8.1.1.11 patchset 5 on windows - dedicated client - any browser)