OpenID. How do you logout

Question

On a website I have implemented the login using OpenID (based on StackOverflow).

But I can\'t seem to logout.
On my host I can logout but when the user tries to logi

Answer 1

This is called Single Logout or Single Sign-Out, which OpenID doesn't support. In my opinion, SSO without logout is a big security hole. Logging out a single site doesn't mean much if others can just get in with a few clicks.

For now, we have to remember the provider. If it's someone we know, we trigger the logout process for them. For Google, the URL is,

https://www.google.com/accounts/Logout

The logout flow is ugly but it does the job.