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Editorial Team
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Asked: 2026-05-16T16:42:55+00:00

I recently got a situation where I need to set a bit in a

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I recently got a situation where I need to set a bit in a database from 1 to 0 on web page on close event and I found there is no such event but an unload event so I thought I can generate an AJAX call from it.

Now, when some one tries to close the browser, it should be closed instantly because of UE and if I will have AJAX request that will change a bit from 1 to 0 in database, it would probably be taking a second in my internet connection but some one on the other side can have slow connection and the browser will wait little longer prior to close. Am I right? Or the browser will be hidden and it will carry the AJAX request in the background?

Or if you think any other solution is available that would be helpful.

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1 Answer

  1. Editorial Team

    That is not a reliable way to do this. It’s not guaranteed that the browser will make the request and it can also potentially detrimental to user experience.

    Here’s a page with details on better ways to accomplish this:
    http://ajaxpatterns.org/Heartbeat

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