Can't logout, error 400 Bad Request

Questions OAuth/OIDC
1

Hi,

I have integrated Okta login but when I try to logout I have an error 400 Bad request. (I use PHP)

I have tried to change the authorizationServerId to “default” in the URL from :
‘https://dev-XXX.okta.com/oauth2/v1/logout?id_token_hint=’.$_SESSION[“access_token”]
to :
‘https://dev-XXX.okta.com/oauth2/default/v1/logout?id_token_hint=’.$_SESSION[“access_token”]

I have tried with a redirection to a specific url with the parameter “post_logout_redirect_uri” (the url of redirection being correctly registered in the application), but I still have the same error.
I have tried to add the parameter “state”, with the state recorded during the login, but no more success.

Do you have any ideas ?

Thank you.

2

Your code snippets there make it look like you may be providing an Access Token to the /logout endpoint, but you need to make sure that the value for the id_token_hint is an ID Token.

Do you still see an error if you send an ID token to this endpoint instead?

3

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