[TIMOB-25744] iOS: Uploaded file persists in memory when using JSCore

var xhr = null;

var win = Ti.UI.createWindow({
  backgroundColor: '#fff',
  fullscreen: false, navBarHidden: true, exitOnClose: true, theme: "Theme.materialTheme", orientationModes: [Titanium.UI.PORTRAIT]
});
 
var runTime = Ti.UI.createLabel({
  text: 'Run Time...',
  top: 50,
  left: 10,
  color: '#000'
});

var uploadSpeed = Ti.UI.createLabel({
  text: '0.00 Mbps',
  top: 90,
  left: 10,
  color: '#000'
});

 
var buttonStart = Ti.UI.createButton({ title: "START", width: 100, height: 40, top: '45%', left: '10%' });
var buttonStop = Ti.UI.createButton({ title: "STOP", width: 100, height: 40, top: '45%', right: '10%' });

var uploadfile = Ti.Filesystem.getFile(Ti.Filesystem.getResourcesDirectory(), "100MB.bin").read();

buttonStart.addEventListener("click", function() {

  console.log('Starting Upload');

  var startTime = new Date().getTime();
  var totalPercent = 0;

  xhr = Titanium.Network.createHTTPClient();
  xhr.onsendstream = function(e){ 
      console.log(e.progress);

      totalPercent = (e.progress).toFixed(2);
      var currentTime = new Date().getTime();
      var timeDiff = ((currentTime-startTime)/1000).toFixed(2);
      var totalDownloaded = (102400 * totalPercent);
      var currentKBPS = (((((totalDownloaded * 1024) * 8.192) / timeDiff) / 1024 / 1024)).toFixed(2);

      runTime.text = timeDiff;
      uploadSpeed.text = currentKBPS + ' Mbps';
  };

  xhr.onload = function(e) {

  };
  xhr.open('POST','http://sfo.veeapps.com/upload.php');
  xhr.send({media: uploadfile });
  
});


buttonStop.addEventListener("click", function() {
  xhr.abort();
  xhr = null;
});


win.add(runTime);
win.add(uploadSpeed);
win.add(buttonStart);
win.add(buttonStop);
win.open();