Session only cookies with Javascript

Question

I was wondering if it s possible to create session only cookies with Javascript  When the browser is closed the cookies should be removed    I can t use anything on the server as the website is HTML only     so no server side script is used   I read something about this here  http   blog lysender com 2011 08 setting-session-only-cookie-via-javascript  but i can t find any more information about this     so i was wondering if this method is reliable

User · Accepted Answer

Yes  that is correct   Not putting an expires part in will create a session cookie  whether it is created in JavaScript or on the server   See https   stackoverflow com a 532660 1901857

User · Answer

A simpler solution would be to use sessionStorage  in this case   var myVariable    Hello World    sessionStorage  myvariable     myVariable   var readValue   sessionStorage  myvariable    console log readValue     However  keep in mind that sessionStorage saves everything as a string  so when working with arrays   objects  you can use JSON to store them   var myVariable    a  1 2 3 4   b  some text     sessionStorage  myvariable     JSON stringify myVariable   var readValue   JSON parse sessionStorage  myvariable          A page session lasts for as long as the browser is open and survives over page reloads and restores  Opening a page in a new tab or window will cause a new session to be initiated    So  when you close the page   tab  the data is lost

User · Answer

Use the below code for a setup session cookie  it will work until browser close   make sure not close tab  function setCookie cname  cvalue  exdays        var d   new Date        d setTime d getTime      exdays 24 60 60 1000        var expires    quot expires  quot   d toUTCString        document cookie   cname    quot   quot    cvalue    quot   quot    expires    quot  path   quot         function getCookie cname        var name   cname    quot   quot       var decodedCookie   decodeURIComponent document cookie       var ca   decodedCookie split           for var i   0  i  lt ca length  i            var c   ca i         while  c charAt 0                    c   c substring 1                 if  c indexOf name     0            return c substring name length  c length                     return false              if getCookie  quot KoiMilGaya quot            alert  found            Cookie found  Display any text like repeat user     reload  other page visit  close tab and open again        else         alert  nothing           Display popup or anthing here  it shows on first visit only           this will load again when user closer browser and open again       setCookie  KoiMilGaya   1

User · Answer

For creating session only cookie with java script  you can use the following  This works for me   document cookie    cookiename value  expires 0  path       then get cookie value as following     get cookie  var cookiename   getCookie  cookiename    if  cookiename     value           write your script      function getCookie         function getCookie cname        var name   cname            var ca   document cookie split           for  var i   0  i  lt  ca length  i              var c   ca i           while  c charAt 0          c   c substring 1           if  c indexOf name     -1  return c substring name length  c length             return         Okay to support IE we can leave  expires  completely and can use this  document cookie    mtracker somevalue  path

[javascript] Session only cookies with Javascript

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