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I need to perform an ajax request to send some data server-side every time the user decides to leave the page. However I do not wish to disrupt them in leaving: I do not want popup messages to show up. Currently my code is thus:
window.onbeforeunload=function(){
unloadAjax();
}
This does not work and causes a momentary ajax-error message to show up. However, if I add a return false; statement inside the onbeforeunload function, the ajax works fine. How do I fix this problem?
When you add
return false, a confirmation dialog shows up, delaying the page unload. Meanwhile, the AJAX request finishes. When noreturnstatement is included, the page will immediately unloads, terminating all active connections (and breaking your AJAX request).