TableViewSection.headerView doesn't work

Hi, I've a problem with tableViewSection.headerView. Here is my simple code of app.js:

Titanium.UI.setBackgroundColor('#000');
var win1 = Titanium.UI.createWindow({  
    title:'Tab 1',
    backgroundColor:'#fff'
});
var dataSectionSopralluoghi = [];
var tableViewSopralluoghi = Titanium.UI.createTableView({height:'auto', top:0});
 
var headerTitleView1 = Ti.UI.createView({
    backgroundColor:'#FFF'
});
var headerTitleLabel1 = Ti.UI.createLabel({
    text:'headerTitleLabel1'
});
headerTitleView1.add(headerTitleLabel1);
dataSectionSopralluoghi[0] = Titanium.UI.createTableViewSection({
    headerView:headerTitleView1
});
var dataVerifica1 = Titanium.UI.createTableViewRow();
var verificaLabel1 = Ti.UI.createLabel({
    text:'Test row'
});
dataVerifica1.add(verificaLabel1);
dataSectionSopralluoghi[0].add(dataVerifica1);
tableViewSopralluoghi.setData(dataSectionSopralluoghi);
win1.add(tableViewSopralluoghi);
win1.open();

Thanks