Just after installing CRW on OCP with TLS support and self-sign certificate it's impossible to enter the login page, and error message is rather misleading:

Workaround 1: add self-signed TLS certificate to the browser.
Workaround 2: open https://keycloak-codeready-e2e-crw-https.apps.ndp-test-311.dynamic.xpaas/auth/js/keycloak.js in separate tab and approve exception of https.