I need the Wildfly client adapter because database lookups are provided by the server. I think I've found a JIRA related to the logout issue: https://issues.jboss.org/browse/KEYCLOAK-2939 Taking a cue from the issue ticket above I noticed that if I create my own hidden iframe and navigate to the keycloak logout URL from within it then the logout works. Using a XMLHttpRequest (AJAX) request to the logout URL wasn't working, but the hidden iframe does. Weird. Must be something to do with cross-site scripting / cookies? ----- Original Message ----- From: "Stan Silvert" <ssilvert(a)redhat.com&gt; To: "Ryan Slominski" <ryans(a)jlab.org&gt; Cc: "keycloak-user" <keycloak-user(a)lists.jboss.org&gt; Sent: Monday, August 20, 2018 2:34:17 PM Subject: Re: [keycloak-user] How to logout On 8/20/2018 9:27 AM, Ryan Slominski wrote: I don't think that makes sense.  If you want everything handled in the browser then you can use the javascript adapter. If you absolutely need to know the Keycloak session state without making a server request then javascript adapter would be the solution.  In that case, you wouldn't use the WildFly adapter at all.