Why does close() not do anything? - google-apps-script

Question

Does the app.close() not do anything? it does not appear to work....
// Script-as-app template.
Sample code
function doGet() {
var app = UiApp.createApplication();
var button = app.createButton('Click Me');
var closeButton = app.createButton('Close It');
app.add(closeButton);
app.add(button);
var label = app.createLabel('The button was clicked.')
.setId('statusLabel')
.setVisible(false);
var label2 = app.createLabel('The Close button was clicked.')
.setId('statusLabel2')
.setVisible(false);
app.add(label);
app.add(label2);
var closeHandler = app.createServerHandler('close');
closeHandler.addCallbackElement(label);
var handler = app.createServerHandler('myClickHandler');
handler.addCallbackElement(label);
closeButton.addClickHandler(closeHandler);
button.addClickHandler(handler);
return app;
}
function myClickHandler(e) {
var app = UiApp.getActiveApplication();
var label = app.getElementById('statusLabel');
label.setVisible(true);
app.close();
return app;
}
function close(e)
{
Logger.log("Here");
var app = UiApp.getActiveApplication();
var label2 = app.getElementById('statusLabel2');
label2.setVisible(true);
return app.close();
}
Link to sample code
https://script.google.com/a/macros/scotts.com/s/AKfycbz-avIT3bZNJ68_EpRZYXmh66XLJzYI--F0n7DGNn8jL_wlG1k/exec

Answer 1

As documented here:
"This will only work if the app is being shown as a dialog, such as in
a Google Spreadsheet. It will have no effect when called on an app
that is published as a standalone service."
That's a fundamental limit of browsers, by the way - a page can't close itself.