gistfile1.txt

        var openSession = function(readers) {
                var seReader = readers[0];
                return seReader.openSession();
        };

        var openChannel = function(session) {
                var testAIDBuffer = ['0', '1', '2'];
                var mastercardAID = new Uint8Array(testAIDBuffer);
                return session.openLogicalChannel(mastercardAID);
        };

        var sendFirstAPDU = function(channel) {
                var apdu = new SECommand(0x91, 0x10, 0x00, 0x00);
                return channel.transmit(apdu);
        };

        var sendSecondAPDU = function(response) {
                var apdu = new SECommand(0x91, 0x10, 0x00, 0x00);
                return response.channel.transmit(apdu);
        };

        var updateUI = function() {
            console.log('All okay');
        };

        var showError = function(error) {
            console.error(error);
        };

        var cleanup = function(response) {
            return response.channel.session.reader.closeAll();
        };

        var sedom = window.navigator.seManager;
        var pRdrs = sedom.getSEReaders();
        pRdrs.then(openSession)
             .then(openChannel)
             .then(sendFirstAPDU)
             .then(sendSecondAPDU)
             .then(cleanup)
             .then(updateUI)
             .catch(showError);