Invalid redirect error login to Jenkins console after upgrade in OpenShift 4

Issue

• Unable to login into Jenkins console, post upgrading to Jenkins version 4.14 or newer

• After clicking the Log in with OpenShift button to log into Jenkins, it fails with the following error:

  {"error":"invalid_request","error_description":"The request is missing a required parameter, includes an invalid parameter value, includes a parameter more than once, or is otherwise malformed.","state":"NDFiM2Y3NTUtZjZkYi00"}
  

• Below error is observed in the Jenkins logs:

  Jenkins URL set to: https://jenkins-url.example.com/ in file: /var/lib/jenkins/jenkins.model.JenkinsLocationConfiguration.xml
  
  WARNING org.eclipse.jetty.server.handler.ContextHandler$Context log Error while serving https://jenkins-url-2.example.com/securityRealm/commenceLogin
  java.lang.reflect.InvocationTargetException
      [...]
  Caused by: java.net.MalformedURLException: invalid redirect https://jenkins-url-2.example.com/
  at org.openshift.jenkins.plugins.openshiftlogin.OpenShiftOAuth2SecurityRealm.doCommenceLogin(OpenShiftOAuth2SecurityRealm.java:1078)
      [...]
  java.net.MalformedURLException: invalid redirect https://jenkins-url-2.example.com/