on{x} recipe to make pagerduty texts always play ringtone, then play annoying sound every minute until unlocked

pagerduty-ring-through.js

// =====================================================================
// Crank up the volume and play an annoying sound every minute when you
// get a text from PagerDuty. Put things back when you unlock the screen.
// @intjonathan
// =====================================================================

var strVersion = 'v0.3';
var lngInterval = 1*60*1000; // 1 minute
var strAlarmFilePath = "file:///mnt/sdcard/Music/Ringer.mp3";

console.log('Started script: Repeat smsReceive buzz and sound until unlock phone.');

// Register callback on sms received event
device.messaging.on('smsReceived', function (sms) {
  console.info('sms received from', sms.data.from, 'with the following body:', sms.data.body);

  if (device.screen.isLocked && sms.data.from == '12817243738')
  {
    device.localStorage.setItem('alarmPath', strAlarmFilePath);
    playAudio = device.audio.ringerMode == 'normal' ? 'true' : 'false';
    device.localStorage.setItem('playPageAudio', playAudio);
    device.localStorage.setItem('oldRingVolume', device.audio.ringerVolume);
    device.localStorage.setItem('oldMediaVolume', device.media.volume);
    
    if (playAudio == 'true') {
        device.audio.ringerVolume = 100;
        device.media.volume = 80;
        device.applications.launchViewer(device.localStorage.getItem('alarmPath'), "audio/*"); 
    }
    
    var now = new Date();
    device.scheduler.setTimer( 
      {
        name: "smsReceivedAlarm",
        time: now.getTime() + lngInterval,
        interval: lngInterval,
        exact: false
       },
      function () {
        device.signals.emit('repeatNotification');
      }
    );
  }
});

// Annoying notification
device.signals.on("repeatNotification", function(signal) {
    device.audio.vibrate(1000);
    if(device.localStorage.getItem('playPageAudio') == 'true') {
        device.applications.launchViewer(device.localStorage.getItem('alarmPath'), "audio/*"); // Play Alarm Sound
    }
    
});

// Teardown the alarm and volume boosts on unlock
device.screen.on("unlock", function() {
  if(device.localStorage.getItem('oldMediaVolume')) {
    console.info('Unlock screen and stop timer.');
    device.scheduler.removeTimer("smsReceivedAlarm");
    device.media.volume = device.localStorage.getItem('oldMediaVolume');  
    device.audio.ringerVolume = device.localStorage.getItem('oldRingVolume');
    storage.clear();
  }
});

console.log('Completed script: Repeat smsReceive alarm until unlock phone');
console.log('Running version : ' + strVersion);

I get an error on line #62 "Javascript Exception:ReferenceError: "storage" is not defined. I am using on x 0.59.1. Any clues?

I did try commenting that line out to no avail.