Sencha Touch not initializing - ios

Question

MY sencha touch application is working fine in all browsers, however when I save the url to the iPad home screen. It will not load and only shows a blank screen. I get no JS errors and nothing comes through the log when debugging. Heres a sample of the app:
script type="text/javascript">
var rootPanel;
if (navigator.userAgent.match(/iPad/i)) {
viewport = document.querySelector("meta[name=viewport]");
viewport.setAttribute('content', 'width=980');
}
Ext.application({
launch: function () {
var contactForm = Ext.create('Ext.form.FormPanel', {
standardSubmit: true,
fullscreen: true,
items: [{
xtype: 'titlebar',
title: 'My App',
docked: 'top'
}, {
xtype: 'fieldset',
items: [{
xtype: 'textfield',
name: 'LoginName',
label: 'Login Name:'
}, {
xtype: 'passwordfield',
name: 'Password',
label: 'Password:'
},
{
xtype: 'hiddenfield',
name: 'ReturnUrl',
value: '/returnUser.html'
}] // items
}, {
xtype: 'toolbar',
layout: {
pack: 'center'
}, // layout
ui: 'plain',
items: [{
xtype: 'button',
text: 'Reset',
ui: 'decline',
handler: function (btn, evt) {
Ext.Msg.confirm('', 'Are you sure you want to reset this form?', function (btn) {
if (btn === 'yes') {
contactForm.setValues({
LoginName: '',
Password: ''
}); // contactForm()
} // switch
}); // confirm()
}
}, {
xtype: 'button',
text: 'Submit',
ui: 'confirm',
handler: function (btn, evt) {
var values = contactForm.getValues();
contactForm.submit({
url: 'Login',
method: 'POST',
waitTitle: 'Connecting',
waitMsg: 'Sending data...',
success: function (form, result) {
Ext.Msg.alert('Login succeeded!', result.response.reason);
},
failure: function (form, result) {
Ext.Msg.alert('Login Failed!', result.response.reason);
}
});
} // handler
}] // items (toolbar)
}] // items (formpanel)
}); // create()
} // launch
}); // application()
$(document).ready(function () {
});
I put an alert in the launch method of Ext.Application but it does not show. When I put it an alert in the document.ready function it does show. I should also note it DOES work on the ipad browser, just not when launched from the icon on the homescreen.

Answer 1

i faced a similar issue in android actually in my case the problem was because of Ext.Loader not enabled I see you have not included it either. Include this script before Ext.application & see if it works
Ext.Loader.setConfig({
enabled:true
});
Ext.application({...});

Answer 2

It appears to be the version of sencha I was using which was 2.1.0 I believe, as soon as I updated to the latest(2.1.1 Build Date 2013-02-05 12:25:50 ) I works fine.