> (1) we can't access the value at all because the browser prevents the actual 
> reading of the value since window.top is different-origin so it comes back 
> empty string,

Isn't empty string sufficient to indicate lack of access? What unique 
information does an exception provide?

> and even if we could read the href the big problem at least in Android 2.2 is 
> that (2) the browser refreshes the page when the unsafe JS access happens so 
> the user is already being navigated away in essence.

Can you provide more information about this?

Is this intentional behavior, or just a bug in Android?

Does the browser refresh upon reads and writes of location.href, or only writes?

Thanks,
Geoff

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