deleting cookie from parent domain

Question

I am in "foo.bar.com", I am setting the cookie with key "abc" for the domain ".bar.com"

So far so good.

Now, I am still in "foo.bar.com" but I want to delete the cookie with key "abc" from domain ".bar.com"

How do I do that? I am doing JavaScript.

As far as I know, this is only possible in PHP. I may be wrong. Also, deleting a cookie is just setting it to an expiration date before the current time. — SeinopSys, Dec 26 '12 at 23:26

score 4 · Answer 1 · answered Feb 28 '13 at 13:49

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You need to explicitly provide the domain

document.cookie = 'abc=' + ";expires=Thu, 01 Jan 1970 00:00:01 GMT ;domain=.foo.com;path=/";

answered Feb 28 '13 at 13:49

jJ'

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score 2 · Answer 2 · edited Feb 09 '14 at 23:04

2

If you use jquery.cookie, you specify the domain and path:

$.removeCookie('cookie_name', {domain: '.food', path:'/'});

edited Feb 09 '14 at 23:04

eebbesen

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answered Feb 09 '14 at 22:43

pcyim

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This isn't a popular comment, but it worked for me. It allowed me to delete a cookie from .base.com from subsite.base.com – webber55 May 18 '17 at 12:30

score 2 · Answer 3 · answered Oct 05 '20 at 13:46

While counter-intuitive, I've found the behavior seen by OP to be expected in both Chrome and Firefox. It's possible to create a cookie at a parent domain from a subdomain, but not possible to delete it afterward. This answer to another post describes this in a little more detail.

deleting cookie from parent domain

3 Answers3