I am a developer on a webapplication sitting on a server using/having/implementing SSL and is behind a reverse proxy. I am attempting to make it recognize smart card certificates to verifies a user instead of a username/password. The little tidbit that it is behind a reverse proxy is temporary but presents the problem for now. The certificates cannot communicate across the reverse proxy to the server. I don't know why and there's nothing I can do about it, it's not our server. That being said, is there any way to pick up the credentials on the client side? I know very little about this. I'm imagining not as this would probably present a security problem. I'm thinking as I write this that the web app must sit on a server that is either getting information from or is the server administering the activeclient setup.