[whatwg] How long should sessionStorage data persist?

[Boris Zbarsky]

Ian Hickson wrote:
> However, the Web Storage spec allows for this case:
> 
> | When a new top-level browsing context is created by cloning an existing 
> | browsing context, the new browsing context must start with the same 
> | session storage areas as the original, but the two sets must from that 
> | point on be considered separate, not affecting each other in any way.

Aha.  Indeed!

-Boris