that prevents web apps developed by WAB version 2.20 to do Single Sign ON (SSO).
for details - see my post -
Single Sign-On (SSO) stopped working after upgrading WAB from 2.17 to 2.20 due to bug in API 4.19 an...
ESRI correction to API 4.19, 4.20 and the next to come, will be greatly appreciated.
Who can tell ESRI to urgently correct that bug?