If SLO is attempted on a different server to the one SSO was complete against, AM returns a blank page. It does not even land on the default page. AM recommends sticky SLO but there will be occasions where the AM server that SSO was completed on is not available (server down etc.)
- Setup two AMs behind a LB to act as the SP
- Setup one AM as an IDP
- Remove AM2/SP2 from the LB pool and complete SSO against the LB (SP1)
- Add SP2 back in and remove SP1 and attempt SLO against the LB (SP2)
SSO and SLO to the same server (not always possible) or refresh the SLO attempt (not ideal).