[keycloak-user] Uncaught Exception: undefined in JavaScript client with check-sso

Hi Keycloak Users, Looks like there might be a bug in the JavaScript client as the simplest use of onLoad: 'check-sso' seems to result in an Uncaught Exception. Using Keycloak 4.1.0. Simplest code snippet here: https://gist.github.com/slominskir/547730097f9950356df34eb29270c911 Open web browser console (F12) and see Uncaught Exception. Exception doesn't seem to break anything though and it appears to be safe to simply ignore it. Remove check-sso and the exception goes away. Should I file a bug issue on it? Ryan