I'm trying to validate the Connect2id set up with Go test and I'm getting following error.

"Client authentication failed: Missing client authentication","error":"invalid_client"

The full scenario output is look like below.

Feature: Test Identity Provider

  Scenario:                                                             # features/idp.feature:3
    Given identity provider 'hf1-idp.json'                               # main_test.go:72 -> *Scaffold
    When I request an access