[whatwg] iframe sandbox, <object tag>

[Boris Zbarsky]

On 11/9/11 9:25 AM, Anne van Kesteren wrote:
> It seems wrong to me to add new features to obsoleted features. If there
> are good reasons for using <frame>, maybe it should be made conforming.
> If there are no such reasons, there are no reasons either for adding new
> features to it.

Well, there's implementation and conceptual simplicity.  Saying that 
@sandbox works for all browsing contexts is a lot simpler than saying it 
works for a particular white- or black-list of tag names.

-Boris