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How Can I Reliably Detect Browser Window/Tab Closure Without Triggering on Form Submissions?
How Can I Reliably Detect Browser Window/Tab Closure Without Triggering on Form Submissions?
Dec 20, 2024 pm 10:25 PM
Determining Browser Window/Tab Closure
Q: Capturing Browser Window/Tab Closure Event
I'd like to capture the browser window/tab close event, but the jQuery "beforeunload" event also triggers on form submissions. How can I limit the event to window closures?
A: Isolating Window Closure Event
While "beforeunload" detects any page departure, we can exclude form submissions and hyperlinks using the following code:
var inFormOrLink;
$('a').on('click', function() { inFormOrLink = true; });
$('form').on('submit', function() { inFormOrLink = true; });
$(window).on("beforeunload", function() {
return inFormOrLink ? "Do you really want to close?" : null;
});
For jQuery versions < 1.7:
var inFormOrLink;
$('a').live('click', function() { inFormOrLink = true; });
$('form').bind('submit', function() { inFormOrLink = true; });
$(window).bind("beforeunload", function() {
return inFormOrLink ? "Do you really want to close?" : null;
});
Note: This solution prevents the confirmation prompt if another event handler cancels the submit or navigation. To address this, record the time of submit/click events and check if "beforeunload" occurs more than a few seconds later.
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