socket.onmessage = function()

in lib/main.js [489:504]


    socket.onmessage = function (message) {
        //convert the binary event stream message to JSON
        let messageWrapper = eventStreamMarshaller.unmarshall(
            Buffer(message.data)
        );
        let messageBody = JSON.parse(
            String.fromCharCode.apply(String, messageWrapper.body)
        );
        if (messageWrapper.headers[":message-type"].value === "event") {
            handleEventStreamMessage(messageBody);
        } else {
            transcribeException = true;
            showError(messageBody.Message);
            toggleStartStop();
        }
    };