custom attributes - Asp.net MVC - How to check session expire for Ajax request -

we using ajax call across application- trying find out global solution redirect login page if session expired while trying execute ajax request. have coded following solution taking post - handling session timeout in ajax calls

not sure why in care event "handleunauthorizedrequest" not fired.

custom attribute:

 [attributeusage(attributetargets.class | attributetargets.method)]     public class checksessionexpireattribute :authorizeattribute     {         protected override void handleunauthorizedrequest(authorizationcontext filtercontext)         {             if (filtercontext.httpcontext.request.isajaxrequest())             {                 var url = new urlhelper(filtercontext.requestcontext);                 var loginurl = url.content("/default.aspx");                  filtercontext.httpcontext.session.removeall();                 filtercontext.httpcontext.response.statuscode = 403;                 filtercontext.httpcontext.response.redirect(loginurl, false);                 filtercontext.result = new emptyresult();             }             else             {                 base.handleunauthorizedrequest(filtercontext);             }          }      } 

using above custom attribute follow in controller action:

 [nocache]  [checksessionexpire]  public actionresult getsomething()  {   } 

ajax call(js part):

function getsomething() {    $.ajax({         cache: false,         type: "get",         async: true,         url: "/customer/getsomething",         success: function (data) {          },         error: function (xhr, ajaxoptions, thrownerror) {          } } 

web config authentication settings:

  <authentication mode="forms">       <forms loginurl="default.aspx" protection="all" timeout="3000" slidingexpiration="true" />     </authentication> 

i try check deleting browser cooking before making ajax call event "checksessionexpireattribute " not fired- idea please.

thanks,

@paul

i checked , tested code, looks clearly.. problem ajax call wrong..

i fix ajax code, try this..

function getsomething() {         $.ajax({             cache: false,             type: "get",             async: true,             url: "/customer/getsomething",             success: function (data) {              },             error: function (xhr, ajaxoptions, thrownerror) {              }         });     }