Unable to process the OpenID Connect login: Resource URI must be absolute and with no query or fragment

Issue

• Unable to login with OpenID from the Sign-In portlet:

  ERROR [http-nio-8080-exec-2][OpenIdConnectLoginRequestMVCActionCommand:190] Unable to process the OpenID Connect login: java.lang.IllegalStateException: Resource URI must be absolute and with no query or fragment:
  com.liferay.portal.kernel.exception.PortalException: java.lang.IllegalStateException: Resource URI must be absolute and with no query or fragment:
  at com.liferay.portal.security.sso.openid.connect.internal.OpenIdConnectAuthenticationHandlerImpl.requestAuthentication(OpenIdConnectAuthenticationHandlerImpl.java:234) ~[?:?]
  at com.liferay.login.authentication.openid.connect.web.internal.portlet.action.OpenIdConnectLoginRequestMVCActionCommand.doProcessAction(OpenIdConnectLoginRequestMVCActionCommand.java:155) ~[?:?]

Environment

• After you have configured and enabled an OpenID connection, from the login portlet, click OpenID Connect at the bottom.

• Choose a provider and click Sign in

• Enter your credentials and log in
  
  

Resolution

• Remove "example_key" default string in:
  • OAuth Client Default Authorization Request Parameters:

{
    "resource": [],
    "scope": "openid email profile",
    "custom_request_parameters": {},
    "response_type": "code"
}

• • OAuth Client Default Token Request Parameters :

{
    "resource": [],
    "custom_request_parameters": {}
}

Additional Information

• Configuring Single Sign-On Using OpenID Connect