Fixing IFramed application exceptions caused by window.localStorage in Flight

Environment:
OSX Build 13C64
Chrome Version 33.0.1750.152
Flight version 1.0.9 (Can also replicate on 1.1.3)

Steps to reproduce:

* Open Chrome Inspector
* Disable Third Party Cookies in Chrome
* Visit http://nameless-retreat-3780.herokuapp.com/
* Click the "Development modal" button
* View the Chrome Inspector, you will see the exception

```
Uncaught SecurityError: Failed to read the 'localStorage' property from 'Window': Access is denied for this document.
```

This is quite a severe bug for us and I would appreciate feedback ASAP. Thanks.