Logout failed on post_logout_redirect_uri with google/apple idp

Hi, we are using okta classic engine, an app client configured as oidc SPA.

We tried but couldn’t get away from the oauth /logout error, saying post_logout_redirect_uri not specified in okta admin. so far we checked/tried

  • Ensuring uri is set in application’s sign out redirect uri - without special character or ending with /
  • Ensuring uri is encoded properly in network tab - since we are using okta-auth-js
  • Trying not to put any post_logout_redirect_uri in signOut({}) so it goes to origin (which is also added in admin settings)

Questions:

  1. We tried to find option to enable SLO but seems like classic engine doesn’t have it under app settings. is that correct?
  2. Since it’s google/apple idp, do we need to set something at google/apple side?
  3. I saw post mentioned to “Add Origin” with type “type”, is that the possible solution?

ps. looking forward to hearing from you. thank you.

Are you attempting to log users out of Okta or out of an external IdP (Google or Apple)?