Unable to delete cookie from javascript

Question

I am on an external site, and I am trying to delete the cookie via javascript.

I did the following in the console:

function deleteAllCookies() {
             


        

Answer 1

I had a similar issue when trying to remove certain cookies. Sometimes this worked:

document.cookie = name + '=;expires=Thu, 01 Jan 1970 00:00:01 GMT;path=/;';

...and sometimes it didn't.

After looking into the Chrome Inspector (Application tab -> Storage sidebar -> Cookies) I noticed that some cookies were set with different domains. Example:

.mydoamin.com
sub.mydomain.com 

So, my solution was to make a generic function that removes the cookie from all domains.

var deleteCookie = function(name) {
    document.cookie = name + '=;expires=Thu, 01 Jan 1970 00:00:01 GMT;path=/;domain=.mydomain.com;';
    document.cookie = name + '=;expires=Thu, 01 Jan 1970 00:00:01 GMT;path=/;domain=sub.mydomain.com;';
};

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