On Tue, Apr 15, 2014 at 7:06 PM, Boris Zbarsky <bzbarsky@mit.edu> wrote: > On 4/15/14 9:58 PM, Mark S. Miller wrote: > >> Why should the Map or WeakMap care about the Window? >> > > I'm not saying it should. Just answering the technical question. ;) > Honestly, I'd be in favor of just throwing an exception here. >From a use cases perspective, there is one issue: how does one attach state > to a "web page"? > That's a slippery notion because sometimes |w| acts like the container and sometimes it acts like the thing contained. Sounds like a recipe for security vulnerabilities when the author and WeakMap disagree about whether they're talking about the container or the thing contained... I guess one could just key it on the Document involved.... Assuming you're in the same origin and can see the Document. Are you even allowed to know always when an iframe navigates to another page? Adam
Received on Wednesday, 16 April 2014 13:03:01 UTC