The Slack API [documentation ](https://api.slack.com/methods/auth.revoke)states GET is the preferred way, but `$client->authRevoke([ 'token' => $token, ]);` will result in "invalid_auth" I tried with curl and the POST request works fine curl https://slack.com/api/auth.revoke -X POST --header "Authorization: Bearer xxx-xxxx-xxxxxxx" Can someone confirm the issue?