In this scenario, the smartcard middleware has to be installed on the virtual desktops as well as configured on the endpoint device side.
The View Connection Server has to be configured on the endpoint device side.
The View Connection Server has to be configured to accept connections via SSL/TLS secured https URLs. The root certificate of the certificate used for this service has to be known as the trusted root certificate on the thin client (see the how-to Deploying Trusted Root Certificates in IGEL OS, certificate type SSL Certificate).