[whatwg] Prevent a document from being manipulated by a "top" document

[Dennis Joachimsthaler]

Am 02.08.2011, 13:12 Uhr, schrieb Anne van Kesteren <annevk at opera.com
>
> If users cannot trust their userscripts and addons (provided they can do  
> unsafe things) they have lost already.
>

True. We do not make standards solely to protect inexperienced users.

Thank you for your insight on this matter, though.