asp.net mvc - Preventing jQuery modal popup from opening on session timeout MVC4 -

i have asp.net mvc 4 application, in i'm trapping session timeout in session timeout filter handler handle session timeouts. want handle session timeout ajax requests. implemented code found in question here.

which worked treat autocompletes , other ajax calls, issue being ajax calls modal popups!

so have changed session timeout handler :

public override void onactionexecuting(actionexecutingcontext filtercontext) {     if (filtercontext.httpcontext.session != null)     {         if (filtercontext.httpcontext.session.isnewsession)         {             var sessionstatedetails =(sessionstatesection)configurationmanager.getsection("system.web/sessionstate");             var sessioncookie = filtercontext.httpcontext.request.headers["cookie"];              if ((sessioncookie != null) && (sessioncookie.indexof(sessionstatedetails.cookiename) >= 0))             {                 if (filtercontext.httpcontext.request.isajaxrequest())                 {                     filtercontext.httpcontext.response.clear();                     filtercontext.httpcontext.response.statuscode = 500; 

i.e. setting status code 500 (401 didnt work me cause using windows authentication , impersonation if change status 401, security popup password , username).

and trap in either .ajaxsetup , or .ajaxerror have tried both ...and re-direct session timeout action (as required) display view session timeout.

$(document).ajaxerror(function (xhr, props) {     if (props.status === 500) {         ////session redirect goes here          var patharray = window.location.pathname.split('/');         var segment_1 = patharray[1];         var newurl = window.location.protocol + "//" + window.location.host + "/" + segment_1 + "/home/sessiontimeout";         window.location = newurl;     } }); 

the problem before re-direct , ajax popup still briefly opened. doesnt great. idea how can prevent opening @ , re-directing smoothly ?

here jquery dialog code:

$(document).ready(function () {     $(".opendialog").live("click", function (e) {         e.preventdefault();         $("<div></div>")             .addclass("dialog")             .attr("id", $(this)             .attr("data-dialog-id"))             .appendto("body")             .dialog({                 title: $(this).attr("data-dialog-title"),                 close: function () { $(this).remove() },                 width: 600,                 modal: true,                 height: 'auto',                 show: 'fade',                 hide: 'fade',                 resizable: 'false'             })         .load(this.href);      });      $(".close").live("click", function (e) {         e.preventdefault();         $(this).closest(".dialog").dialog("close");     }); }); 

any appreciated, think im there this.

i managed working in end , if else having same issue , here did ... kept using session handler , raise 403 instead of 500 , raising 500 wrong , had few undesirable side effects:

code

                if (filtercontext.httpcontext.request.isajaxrequest())                 {                     filtercontext.httpcontext.response.clear();                     filtercontext.httpcontext.response.statuscode = 403;                  }                 else ...usual code goes here .... 

and trap ajax error follows:

$(document).ajaxerror(function (xhr, props) {     if (props.status == 403 ) {         ////session redirect goes here          var patharray = window.location.pathname.split('/');         var segment_1 = patharray[1];         var newurl = window.location.protocol + "//" + window.location.host + "/" + segment_1 + "/home/sessiontimeout";         window.location = newurl;     } }); 

of course popup still attempts load briefest of moments before re-direct ,but users dont seem mind.