That's interesting. Backchannel logout works in case load balancer of CAS (nginx) doesn't use SSL however backchannel doesn't work in case nginx uses SSL. I see the same output in console of CAS server in both cases (with SSL and without SSL)
-- - Website: https://apereo.github.io/cas - Gitter Chatroom: https://gitter.im/apereo/cas - List Guidelines: https://goo.gl/1VRrw7 - Contributions: https://goo.gl/mh7qDG --- You received this message because you are subscribed to the Google Groups "CAS Community" group. To unsubscribe from this group and stop receiving emails from it, send an email to cas-user+unsubscr...@apereo.org. To view this discussion on the web visit https://groups.google.com/a/apereo.org/d/msgid/cas-user/2d9f080c-2f94-44b7-a0c6-1e09b3e0bd08%40apereo.org.