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New: Block Third Party Cookies
Apr. 04, 2009, 05:05 PM
Post: #24
RE: New: Block Third Party Cookies
As for your point 1, exactly.


(Apr. 04, 2009 04:41 PM)Graycode Wrote:  2. GRC doesn't seem to be doing the kind of third-party party cookie that HTTP headers can carry. GRC is instead using multiple domains (grc.com and grctech.com) that each set cookies that aren't automatically sent to the other. It's confusing.

Real third party cookies have a "domain=" attribute with a name that is, well, for another site. I think these are the kind of third party cookies that some (or most) modern browsers can also address.

Below is third party cookies being set by visiting "www.hotmail.com/".

If i got you right, saying a 3rd party cookie is e.g. one sent by hotmail.com, carrying a .mail.live.com domain field, that is simply a defunct cookie, and i strongly assume that no halfway recent browser would accept it, no matter what you've told it to do with 3rd party cookies (i'm certain only regarding Firefox, though).

I think GRC got it correctly. Wikipedia explains it nicely. What surprised me (besides the favicon story) is that this test page is considering cookies set by an off-domain iframe as 3rd party, too! I would expect a lot of breakage here.
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Messages In This Thread
New: Block Third Party Cookies - sidki3003 - Apr. 02, 2009, 11:13 PM
RE: New: Block Third Party Cookies - Graycode - Apr. 03, 2009, 06:05 AM
RE: New: Block Third Party Cookies - sidki3003 - Apr. 03, 2009, 12:32 PM
RE: New: Block Third Party Cookies - lnminente - Apr. 03, 2009, 10:57 AM
RE: New: Block Third Party Cookies - sidki3003 - Apr. 03, 2009, 12:46 PM
RE: New: Block Third Party Cookies - ProxRocks - Apr. 03, 2009, 12:56 PM
RE: New: Block Third Party Cookies - Graycode - Apr. 03, 2009, 05:04 PM
RE: New: Block Third Party Cookies - sidki3003 - Apr. 03, 2009, 01:12 PM
RE: New: Block Third Party Cookies - sidki3003 - Apr. 03, 2009, 03:59 PM
RE: New: Block Third Party Cookies - lnminente - Apr. 03, 2009, 04:32 PM
RE: New: Block Third Party Cookies - sidki3003 - Apr. 03, 2009, 04:52 PM
RE: New: Block Third Party Cookies - sidki3003 - Apr. 03, 2009, 05:44 PM
RE: New: Block Third Party Cookies - Graycode - Apr. 03, 2009, 07:46 PM
RE: New: Block Third Party Cookies - sidki3003 - Apr. 03, 2009, 08:27 PM
RE: New: Block Third Party Cookies - lnminente - Apr. 03, 2009, 07:45 PM
RE: New: Block Third Party Cookies - lnminente - Apr. 03, 2009, 10:34 PM
RE: New: Block Third Party Cookies - lnminente - Apr. 04, 2009, 12:02 AM
RE: New: Block Third Party Cookies - sidki3003 - Apr. 04, 2009, 12:24 AM
RE: New: Block Third Party Cookies - lnminente - Apr. 04, 2009, 01:48 AM
RE: New: Block Third Party Cookies - sidki3003 - Apr. 04, 2009, 03:22 PM
RE: New: Block Third Party Cookies - Graycode - Apr. 04, 2009, 04:41 PM
RE: New: Block Third Party Cookies - sidki3003 - Apr. 04, 2009 05:05 PM
RE: New: Block Third Party Cookies - Graycode - Apr. 04, 2009, 05:22 PM

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