How to prevent ajax call from extending session timeout?

Question

I have in my web application (asp.net) auto-refresh function that goes to the server and updates the displayed data. Every call (as I read and tested), reset the session timeout and therefore it never ends.

Is there any way to prevent from a specific call to extend the timeout?

Is there any way to check in the background from client-side if the user is still authenticated and if not to redirect him to login page?

I check in every ajax start, and if I get 403 error I redirect him. Can I do it without a real operation from the user?

Auto Refresh is build from a few ajax calls that gets data from the server (folder list, document list both are sync) and load templates from the server using $get. — Inbal
– Inbal, Commented May 27, 2014 at 12:19
Does your query to DB takes so long? then its a problem. I think one solution could be create a separate service asmx or WCF and use that to fetch the data, hopefully that will not reset the session timeouts. — Girish Sakhare
– Girish Sakhare, Commented May 27, 2014 at 13:29

Community · Accepted Answer · 2017-05-23 12:16:29Z

I don't know whether this will work or not, but still you can give one try.

I found it on other thread of stack overflow. The idea is it removes the session auth cookie from response, that way it is not refreshed.

// Hide the cookie so this call doesn't extend the user's ticket HttpContext ctx = HttpContext.Current; ctx.Response.Cookies.Remove(FormsAuthentication.FormsCookieName);

How do I stop ASP.net forms authentication / session from renewing in setInterval ajax web service call?

Any idea how to not extend session for polling ajax requests when using OWIN authentication

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