IdP-Initiated SLO logout is not working

Product Support SSO

AI-generated summary

Umar_Draz is experiencing issues with IdP-Initiated SLO logout when logging out from WordPress sites configured with the same SimpleSAMLPHP SSO server as their Discourse app. The logout process fails and redirects to the Discourse auth/failure page. However, logging out from the Discourse app first resolves the issue. simon suggests checking related topics (1, 2, and 3) for potential solutions and recommends contacting the author of the SimpleSAML.php module for further assistance.

1

Hi

I have installed discourse-saml on my discourse app, and configured it with my SimpleSAMLPHP SSO server, everything is working fine.

I have few wordpress sites as well that are configured with my SSO server well, now the issue is if I try to logout from any of the wordpress site then SSO logout is not completes and the discouse auth/failure page is appears on the same page.

But if I do first logout from discourse app then SSO logout work and all of my sites automatically logout.

Would you please help me that what kind of the settings do I need to modify in discourse plugins settings so the IdP-Initiated SLO logout issue is resolve.

2

Sorry for the delayed reply. The member of the Discourse team who I think could help with this is away this week. Let us know if you are able to get the logout issue sorted out before then.

Here are a few links to topics that might provide some help:

It might be worth trying to contact the author of the SimpleSAML.php module to see if they have any ideas about how to fix the issue.