A few weeks ago, I tried to ask a similar question, but phrased it incorrectly, so I'm trying again. I still don't think what I want is possible, but I'm asking anyhow.
Given a web application running on a "remote" server (i.e. can be anywhere in the world), can that webapp communicate with applets on a Java Card connected to a user's workstation? Or phrased separately, can said remote webapp issue ADPU commands (say, through the middleware installed on the user's workstation).