[TIMOB-17740] iOS: Aborting upload causes file to stay in RAM

var win = Titanium.UI.createWindow({backgroundColor:'#fff',layout:'vertical'});
 
var ind = Titanium.UI.createProgressBar({
    width:200,
    height:50,
    min:0,
    max:1,
    value:0,
    top:10,
    message:'Progress',
    font:{fontSize:12, fontWeight:'bold'},
    color:'#888'
});
 
win.add(ind);
ind.show();

addButton({
    title: 'Upload File',
    callback: function(e) {
        ind.value = 0;
 
 		var canceled = false;
        var file = Titanium.Filesystem.getFile(Titanium.Filesystem.resourcesDirectory,'sunset.jpg');
        var uploadfile = file.read();
 
        var httpClient = Titanium.Network.createHTTPClient(); 
        httpClient.setTimeout(12000);
 
        var uploadStartTime = new Date().getTime();
 
        httpClient.onsendstream = function(e){ 
            ind.value = e.progress;
            // The upload is cancelled at 25%
            if (e.progress >= 0.25) {
            	httpClient.abort();
            	httpClient = null;
            }
        };
 
        httpClient.open('POST', 'http://cachefly.cachefly.net'); 
        httpClient.send({media:uploadfile});
    }
});

addButton({
    title: 'Open Window',
    callback: function(e) {
        openWindow();
    }
});
   
function addButton(args) {
    var b1 = Ti.UI.createButton({
        title: args.title,
        top: 40
    });
    b1.addEventListener('click', args.callback);
    win.add(b1);
}
  
function openWindow() {
    var win2 = Ti.UI.createWindow({
        backgroundColor: 'blue',
        layout:'horizontal'
    });
    for (var i=0;i<500;i++) {
        var v = Ti.UI.createView({
            backgroundColor: 'red',
            height: 50, width: 50,
            top:5, left:5
        });
 
        var l = Ti.UI.createLabel({text: i})
        v.add(l);
        win2.add(v);
    }
    win2.addEventListener('click', function() {
        win2.close();
    });
    win2.open();
}

win.open();