I am trying to put an existing application which utilizes TLS Client Authentication behind Front Door. While other X-ARR headers are present X-ARR-ClientCert is not. Is there a setting to control this behavior or does Front Door not support Client Authentication as this time?
Through other channels we got official word that TLS Client Authentication is currently not supported via Front Door. This will likely change in the future but as of 4/30/2019 other avenues must be used.