Javascript Cookies - adding multiple cookies instead of updating one

Question

I am trying to add a popup pause in one day using JS cookies. Here is teh code:

if (document.cookie.indexOf("expirator") >= 0) {

    // do not show popup

}
else{

    var d = new Date();
    var start_date = d.toUTCString();
    d.setTime(d.getTime() + (1*24*60*60*1000));

    var expireDate = "expires="+d.toUTCString();
    document.cookie = "expirator=1;" + expireDate + "; domain=a5w.org; path=/";

    // show popup
}

for a strange reason this scipt adds multiple new cookies with the same name ("expirator") instead of updating one. why is that so?

screenshot from FF cookies:

http://a5w.org/up/uploads/mike/2015-10-10/1444519970_cookies.png

There's a missing space in `expirator=1;` would that cause an issue? — filype, Oct 10 '15 at 23:06
nope, that shuldn't be a problem but I have just tried with no result — Rossitten, Oct 10 '15 at 23:38

score 2 · Accepted Answer · edited May 23 '17 at 12:14

2

You don't update cookies; you need to overwrite them.

Two cookies may have the same name if they were set for different domains or paths.

https://stackoverflow.com/a/1242446/280842

EDIT

There seems to be a bug in Firefox that displays multiple cookies in Firefox cookie manager. See https://bugzilla.mozilla.org/show_bug.cgi?id=504086

edited May 23 '17 at 12:14

Community

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answered Oct 10 '15 at 23:03

filype

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isn't that what he is doing? – xiamx Oct 10 '15 at 23:04
emm.. isn't it the same? to update - simply to overwrte? – Rossitten Oct 10 '15 at 23:04
How do you know that multiple cookies are being added? You can look at the resources tab on the chrome developer tools – filype Oct 10 '15 at 23:11
paths are the same...domains are the same... the only difference is the expiration date. – Rossitten Oct 10 '15 at 23:46
1

@Rossitten my guess is this is a bug in Firefox, what's the result on chrome? – filype Oct 10 '15 at 23:48
@Filype - now that's really weird. NO cookies in Chrome are set. and your example seems to be working fine...hmm................... – Rossitten Oct 10 '15 at 23:58
Be damned FF! https://bugzilla.mozilla.org/show_bug.cgi?id=504086 @Filype - you were right in your guess! add that as your answer, pelase so I can accept that. – Rossitten Oct 11 '15 at 00:35
@Rossitten updated the answer. Interesting discovery. – filype Oct 11 '15 at 00:41

Javascript Cookies - adding multiple cookies instead of updating one

1 Answers1