Titanium file download function (not working large files)

ti-download-simple

function download(localFile, remoteFile, name){
	var progressBar = Titanium.UI.createProgressBar({
		width: "80%",      //describes the width
		height:50,      //describes the height
		bottom: "25%",
		min:0,            //Minimum position
		max:1,           //Maximum value for the progress
		value:0,
		color: '#fff',
		message: 'Downloading ' + name + '...',
		font:{fontSize:12, fontWeight:'bold'}
	});
	$.configMap.add(progressBar);
	progressBar.show();
	 
	var myHttpClient = Ti.Network.createHTTPClient();
	myHttpClient.timeout = 60000;
	 
	myHttpClient.onload = function(e){
		var fileSavingPath = Titanium.Filesystem.getFile(Titanium.Filesystem.applicationDataDirectory, localFile;
		fileSavingPath.write(e.responseData);
		fileSavingPath = null;
		$.configMap.remove(progressBar);
		progressBar = null;
		alert('Download complete');
	};
	myHttpClient.ondatastream = function(e) {
	    progressBar.value = e.progress;
	};
	myHttpClient.open("GET",  remoteFile);
	myHttpClient.send(null);
}