I'm trying to delete the cookies with javascript this way
for(var i = 0; i < arrCookies.length; i++){
                var key = arrCookies[i].split("=");
                document.cookie = key[0]+" =; expires = Thu, 01 Jan 1970 00:00:00 UTC"; 
        }
but after execute this code, I called document.cookie and the reuslts doesn't show the expiration date that I just added  is this correct?
