Very true, 4KB is a large amount of data to send on each request. Until something like FF storage stuff is more widely implemented then I think devs have little options.
I was thinking of putting some kind of calculation on how much space is being used, and some way to inform the developer on reaching the limit, but I don't know :-/ On Aug 13, 2:02 pm, "Dan G. Switzer, II" <[EMAIL PROTECTED]> wrote: > LetsSurf, > > >I've just finished writing a cookieJar plugin for jQuery, as I > >couldn't find anything like it for jQuery. > > >http://www.jdempster.com/category/code/jquery/cookiejar/ > > >Thought I would post it here in the hope of some feedback. > >Please let me know what you think. Is this a good approach to the > >problem. If you found any problems or have any suggestions. > > Looks interesting, but one suggestion I would make is to put a reminder > prominently displayed on the page that reminds developers that: > > 1) Cookies are sent with each request header. > 2) The total Cookie size per domain is generally 4K (which is per the > spechttp://www.ietf.org/rfc/rfc2109.txt.) This is not a per Cookie limit, but > a > total name-value pair. > > Here's what Microsoft says about IE: > > http://support.microsoft.com/kb/306070 > > "Each cookie begins with a name-value pair. This pair is followed by zero or > by more attribute-value pairs that are separated by semicolons. For one > domain name, each cookie is limited to 4,096 bytes. This total can exist as > one name-value pair of 4 kilobytes (KB) or as up to 20 name-value pairs that > total 4 KB. If the computer does not have sufficient space to store the > cookie, the cookie is discarded. It is not truncated. Applications should > use as few cookies as possible and as small a cookie as possible. > Additionally, applications should be able to handle the loss of a cookie." > > I only point these out as important as it could be very tempting for a > developer to want to stick a large JSON packet in a cookie, but they must > know the repercussions of doing this. > > -Dan
