3274407 - Error occurred in IAS when processing the SAML logon request in embedded or overlayed mode

• The web application(webapp1) is integrated with IAS, and SAML authentication is working well when accessing the web application(webapp1) standalone in browser.
• The following error occurred in IAS when processing the SAML logon request from webapp1 while accessing the another web application(webapp2) in which the web application(webapp1) was embedded or overlayed.
  • UI: Identity Provider could not process the authentication request received. Delete your browser cache and stored cookies and restart your browser. If you still experience issues after doing this, please contact your administrator.
  • IAS troubleshooting log:
    Identity Provider could not process the authentication request sent over Redirect due to general error.Failed to authenticate due to invalid XSRF tokens.
    or:
    Identity Provider could not process the authentication request sent over POST due to general error. Failed to authenticate due to invalid XSRF tokens.

Identity Authentication

IAS, SAML, login, logon, authentication, failed, XSRF  , KBA , BC-IAM-IDS , Identity Authentication Service , Problem