I did a bit of digging here, and it looks to me like /user/logout should be whitelisted in the middleware, and shouldn't present that "Access to Galaxy user controls is disabled".

I might need a little more information. What revision of Galaxy are you running? Are you serving Galaxy at a subdomain or is any other nonstandard routing in place? As an admin user, if you just directly navigate to http://<your_galaxy_instance>/user/logout, you get the same path-blocked error message?

On Wed, Jul 27, 2016 at 1:15 PM Ryan G <ngsbioinformatics@gmail.com> wrote:

Thanks. Clearing out the browser history resolved it but there should be a better way...

On Wed, Jul 27, 2016 at 12:48 PM, Dannon Baker <dannon.baker@gmail.com> wrote:
Hey, thanks for this. I've made an issue (https://github.com/galaxyproject/galaxy/issues/2671) and will check it out today.

On Wed, Jul 27, 2016 at 12:44 PM Ryan G <ngsbioinformatics@gmail.com> wrote:
Hi all - We are using a SSO system so that user's authenticate externally from Galaxy.

when I impersonate a user then try to log out as that user, I'm unable to. I get the page "
Access to Galaxy user controls is disabled
User controls are disabled when Galaxy is configured for external authentication."

If I close the browser down, and restart, I get my SSO log in page, but when I get to Galaxy, I'm still impersonating the user.

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