Issue #3317308 by tuutti, jcnventura: OpenIdConnectClientBase::authorize() no...

   * {@inheritdoc}

   */

  public function authorize(string $scope = 'openid email', array $additional_params = []): Response {

    $language_none = \Drupal::languageManager()

      ->getLanguage(LanguageInterface::LANGCODE_NOT_APPLICABLE);

    $redirect_uri = Url::fromRoute(

      'openid_connect.redirect_controller_redirect',

      [

        'openid_connect_client' => $this->parentEntityId,

      ],

      [

        'absolute' => TRUE,

        'language' => $language_none,

      ]

    )->toString(TRUE);

    $url_options = [

      'query' => [

        'client_id' => $this->configuration['client_id'],

        'response_type' => 'code',

        'scope' => $scope,

        'redirect_uri' => $redirect_uri->getGeneratedUrl(),

        'state' => $this->stateToken->generateToken(),

      ],

    ];

    $redirect_uri = $this->getRedirectUrl()->toString(TRUE);

    $url_options = $this->getUrlOptions($scope, $redirect_uri);

    if (!empty($additional_params)) {

      $url_options['query'] = array_merge($url_options['query'], $additional_params);