Hi Ian,
Thanks for reporting. Unfortunately we can't tackle the problem in this very moment so I opened an [issue](https://github.com/GluuFederation/gluu-passport/issues/62) to perform further verification afterwards.
In the meantime, my suggestion is that, as part of community, you may try to conduct the investigation your own, and share here your findings or workarounds if any.
I think we can turn our attention into that issue by next month.
Kind regards,
Jose