xui supports private browsing for iOS safari devices?

Question

I have a website that is using xui.js

When turning on Private Browsing mode on an iPhone iOS5+, the xui.ready function does not get called. Is there a fix for it?

<script>   
  alert('test');   
  xui.ready(function (e) {
    alert('test2');
  });
</script>

No Private mode you see both 'test' and 'test2'
In Private mode you see only 'test'

When browsing with a safari desktop it works fine with private mode on, seems to only happen on iOS devices such as iphones and ipods.