How to handle concurrently opened windows

OK, so it’s no bad idea, to implement page local storage as sketched
above.

Fritz T. wrote in post #961110:

OK, so it’s no bad idea, to implement page local storage as sketched
above.

I certainly wouldn’t commit to saying that. All I’m saying is that it’s
not a “left-field” idea to have per-window client-side storage.

The HTML5 method seems to me to be the right way to manage it. But,
unless you’re in a unique situation where you can require IE8+ (or any
of the many other browsers that support sessionStorage) it’s too early
it rely on it. There are still too many <=IE7 users out there to even
consider this at present.