How to get cookie expiration date creation date from javascript

Question

Is it possible to retrieve the creation or expiration date of an existing cookie from javascript  If so how

User · Answer

It s impossible  document cookie contains information in string like this   key1 value1 key2 value2       So there isn t any information about dates   You can store these dates in separate cookie variable   auth user Riateche auth expire 01 01 2012   But user can change this variable

User · Answer

you can t get the expiration date of a cookie through javascript because when you try to read the cookie from javascript the document cookie return just the name and the value of the cookie as pairs

User · Answer

If you are using Chrome you can goto the  Resources  tab and find the item  Cookies  in the left sidebar  From there select the domain you are checking the set cookie for and it will give you a list of cookies associated with that domain  along with their expiration date

User · Answer

Yes  It is possible  I ve separated the code in two files    index php   lt  php       time   time    60 60 24 10        timeMemo    string  time      setcookie  cookie         timeMemo        time      gt   lt html gt       lt head gt           lt title gt              Get cookie expiration date from JS          lt  title gt           lt script type  text javascript  gt               function cookieExpirationDate                     var infodiv   document getElementById  info                     var xmlhttp                  if  window XMLHttpRequest                        xmlhttp   new XMLHttpRequest                   else                      xmlhttp   new ActiveXObject Microsoft XMLHTTP                                      xmlhttp onreadystatechange   function                         if xmlhttp readyState    4  amp  amp  xmlhttp status    200                           infodiv innerHTML   xmlhttp responseText                                                           xmlhttp open  GET    cookie php   true                   xmlhttp send                             lt  script gt       lt  head gt       lt body gt           lt input type  button  onclick  javascript cookieExpirationDate     value  Get Cookie expire date    gt           lt hr   gt           lt div id  info  gt           lt  div gt       lt  body gt   lt  html gt    cookie php   lt  php      function secToDays  sec           return   sec   60   60   24              if isset   COOKIE  cookie               if round secToDays  intval   COOKIE  cookie    - time     1   lt  1               echo  Cookie will expire today            else              echo  Cookie will expire in     round secToDays  intval   COOKIE  cookie    - time     1      day s                   else          echo  Cookie not set               gt    Now  index php must be loaded once  The button  Get Cookie expire date   thru an AJAX request  will always get you an updated  time left  for cookie expiration  in this case in days

User · Answer

It s now possible with new chrome update for version 47 for 2016   you can see it through developer tools on the resources tab  select cookies and look for your cookie expiration date under  Expires Max-age

User · Answer

The information is not available through document cookie  but if you re really desperate for it  you could try performing a request through the XmlHttpRequest object to the current page and access the cookie header using getResponseHeader

User · Answer

One possibility is to delete to cookie you are looking for the expiration date from and rewrite it  Then you ll know the expiration date

[javascript] How to get cookie expiration date / creation date from javascript?

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