Comments on: Number and size of cookies in Internet Explorer

By: O. van der Zee

O. van der Zee — Wed, 14 Apr 2010 19:21:58 +0000

If you really need local storage at the client side, to save traffic or server CPU, you might run your site in a single frame website. The frameset (the ‘outer’ page) holds the data, while the frame (the ‘inner’ page) provides the view. Any information you need to resuse can be retrieved from the frameset, even before the onload event! Works in any browser.

By: Kevin Sterns

Kevin Sterns — Fri, 06 Nov 2009 07:58:09 +0000

From my own testing, IE 8 seems to have increased the limit to around 10k per domain. The cookie data is all there but it won’t let you read it, except using the debugger. You can keep writing it however. For example, write a ‘.’ to replace a large cookie and see your other ones magically reappear.

By: Ere

Ere — Tue, 15 Sep 2009 09:26:09 +0000

I had that same problem, at least somebody has written about it.

I found out it seems to happen in IE 8 browser aswell, doesnt seem to let me add more data than about 500 characters.

By: Tim Dutton

Tim Dutton — Mon, 15 Jun 2009 19:34:32 +0000

For something like a shopping cart, you could send cart info (products in cart) in the url using javascript to add to the query string when going to the next page, then parse the items out of the query string when you get to the next page — something like next_page.html?cart=1244,3366,1324,2314,4321

By: Streaming objects into a cookie « Brian Pedersen’s Sitecore and .NET Blog

Tue, 24 Mar 2009 12:10:51 +0000

[...] Microsoft states that their browser can store at least 20 cookies per domain and at least 4096 bytes per cookies, but the official max size is 4k, so you should stick to this. [...]

By: ed

ed — Wed, 07 May 2008 23:22:05 +0000

Microsoft increased the limit to 50 cookies in August of 07. For more information, check out this article: http://blogs.msdn.com/ie/archive/2007/08/29/update-to-internet-explorer-s-cookie-jar.aspx

Unfortunately, it looks like the 4096 byte limit still applies.

By: apache->VHOST - php session problem - immer neue session id - Forum Fachinformatiker.de

Thu, 07 Feb 2008 11:50:08 +0000

[...] Zitat von bjt Weiterhin soll es wohl auch eine Beschränkung der Coockie Speicherung im IE geben (max 20 pro Domain) und der Coockie darf max. 4kb groß sein. Das war bei uns allerdings nicht das Problem sondern der Unterstrich Obacht: Mindestens IE6 scheint das 4K-Limit nicht auf jedes einzelne Cookie zu beziehen, sondern auf die Gesamtheit aller Cookies einer Domain (guggstu hier, danke übrigens für das Kompliment… ) [...]

By: Kevin Darling

Kevin Darling — Fri, 18 Jan 2008 16:12:49 +0000

Yes, above 4K total all the cookies “disappear” from view.

But if you remove one of the offending cookies, and thereby drop the total back below the limit, all the other cookies will magically appear again.

By: tracy

tracy — Thu, 01 Nov 2007 17:19:34 +0000

Do cookie files have a termination date?

By: Aaron Shepard

Aaron Shepard — Wed, 29 Aug 2007 23:04:00 +0000

The problem is acknowledged by Microsoft and explained as an error in the file Mshtml.dll.

http://support.microsoft.com/kb/820536/

The document is dated Sept. 9, 2003 — four years ago!

Aaron