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AJAX - when the user leaves the page - good or bad practice / implementation?

I just read how to check that users leave the page earlier, when suddenly I thought about doing AJAX, when the user leaves the page to send analytical data back to the server.

Does the AJAX event do onunloadgood or bad practice / implementation?

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Making AJAX calls while unloading doesn't work very well in all situations. Typically, the web browser closes the panel almost immediately, and the AJAX call may be lost.

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Source: https://habr.com/ru/post/1723767/

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