Remove session on browser close in ASP.NET

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I need to remove a specific session on closing the browser. The project is in asp.net with c#.

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I need to remove a specific session on closing the browser. The project is in asp.net with c#.

Posted 21-Mar-19 4:37am

bijeesh06

Updated 21-Mar-19 5:53am

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[no name] 21-Mar-19 11:32am

What does that mean? The "user" closes the "browser". You want to "expire" something?

bijeesh06 3-Apr-19 6:11am

yes

3 solutions

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OriginalGriff · Answer 1 · 2019-03-21T05:48:00

Solution 1

You can't: there is no notification from the browser to your website that the browser is closing, or the page your site was displayed on has closed, or the user has navigated away from your site.

Even if there were, what would happen if the user pulls the mains lead out?

Posted 21-Mar-19 5:48am

OriginalGriff

F-ES Sitecore · Answer 2 · 2019-03-21T05:49:00

Solution 2

You can't because the server doesn't know the user has closed the browser. You'll just need to wait for the session to expire.

Posted 21-Mar-19 5:49am

F-ES Sitecore

MadMyche · Answer 3 · 2019-03-21T05:53:00

Nothing that is 100% reliable, but there are options, some more difficult than others.

1. Setting up WebSockets. Seems to be overkill if it's only going to be used for monitoring if the server has an active connection to the browser.

2. COMET. An AJAX based approach using a javasript timer to continuously ping the server to create a quasi long running http request. Once the page/tab is closed it will break the cycle and you will know this session is closed.

3. Javascript events onunload and onbeforeunload. Use the events to trigger an AJAX post notifying of session close. These would probably need to fire up an alert/confirmation immediately after the post so that the AJAX completes before the request is aborted.

4. "Intents". Those annoying javascripts that cause a modal window to pop-up when the mouse leaves the browing area. Again this would fire up an AJAX call.