On Wed, Aug 25, 2010 at 6:33 PM, Ian Hickson <[email protected]> wrote: > This relies on sites actually using this feature. I don't see any reason > to believe sites would use this enough to make a dent here.
A lot of sites set expiration dates for cookies, don't they? > If an author is aware enough to do this, then he's presumably also aware > enough to just crawl through the existing keys, nuking the ones that are > no longer in use. > > . . . > > That can easily be done without UA support. Yes, this would just be a convenience. I don't see anything you could do with built-in expiration that you couldn't do without. You could always emulate it by storing the last-modified date, and then wrapping every access in a function that checks the last-modified date and deletes it if it's too old.
