Receiving only one byte in Serial Port - Chrome App - google-chrome

Question

The situation
I have a scanner that has been working with a compiled application which I don't have the source. It still works and can be tested to make sure the scanner is working. I need to convert the data entry process to my web based system.
So I'm building a chrome app that read serial port information incoming from the com port. I first tried setting it up with a com port emulator and a virtual null modem. This allowed me to test the connection and the receive data. I can't find why I am receiving only 1 byte.
The problem
When I connected to the actual scanner, I am able to connect without any issue, but when I receive the dataArray it's only one byte long. After reveiving the first data, I'm unable to receive any other data until I restart the connection.
The Code
var connectionId = -1;
var e_dtr, e_rts, e_dcd, e_cts, e_ri, e_dsr;
var dtr, rts;
chrome.app.runtime.onLaunched.addListener(function(launchData) {
chrome.serial.getDevices(function(objs,arg2){
chrome.serial.connect(objs[0].path, {ctsFlowControl:true}, onConnect)
});
});
chrome.serial.onReceive.addListener(function(info){
chrome.serial.getInfo(info.connectionId, output);
var uint8View = new Uint8Array(info.data);
var value = String.fromCharCode.apply(null, uint8View);
console.log(value);
});
chrome.serial.onReceiveError.addListener(function(info){
var uint8View = new Uint8Array(info.data);
var value = String.fromCharCode.apply(null, uint8View);
console.log(value);
});
function readSignals() {
chrome.serial.getControlSignals(connectionId,onGetControlSignals);
}
function onSetControlSignals(result) {
console.log("onSetControlSignals: " + result);
};
function changeSignals() {
chrome.serial.setControlSignals(connectionId, { dtr: dtr, rts: rts }, onSetControlSignals);
}
function onGetControlSignals(signals) {
console.log(signals);
}
function onConnect(connectionInfo) {
console.log(connectionInfo);
if (!connectionInfo) {
console.log('Could not open');
return;
}
connectionId = connectionInfo.connectionId;
console.log('Connected');
dtr = false;
rts = false;
changeSignals();
setInterval(readSignals, 1000);
};