Learning Portal directs to "https://learn.openshift.com/?ref=webconsole" which appends the '?ref=webconsole' in the end of link. Verified on 4.5.0-0.nightly-2020-04-28-235851
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2020:2409