I'm trying to post data when a user leaves my page. I have finally managed to find a working solution, however, it shows a confirmation dialog when the user leaves. I have tried return null;
but it didn't work. Is it possible to disable the dialog?
window.onbeforeunload = function() { $.post("track.php", { async: false, refid: refid, country: country, type: type, }); return ''; }
The onbeforeunload event occurs when the document is about to be unloaded. This event allows you to display a message in a confirmation dialog box to inform the user whether he/she wants to stay or leave the current page. The default message that appears in the confirmation box, is different in different browsers.
onbeforeunload Below are my findings on the iPad; Using window. onunload , I am able to get an alert when user navigates to a different page from myPage. html (either by clicking on some link or doing a Google search while on myPage.
The beforeunload event is fired when the window, the document and its resources are about to be unloaded. The document is still visible and the event is still cancelable at this point. This event enables a web page to trigger a confirmation dialog asking the user if they really want to leave the page.
From the Mozilla Developer Network page:
When this event returns a non-void value, the user is prompted to confirm the page unload.
This means the return value of the handler must be undefined
(not ''
, false
, or null
) in order to avoid triggering the confirmation prompt.
window.onbeforeunload = function() { $.post("track.php", { ... }); return undefined; }
In javascript you can skip the return value altogether to get the same result.
In coffeescript with jquery it's something like
$(document).ready -> $(window).bind('beforeunload', -> #put your cleanup code here undefined )
If you want to disable the dialog, please only write
window.onbeforeunload = function() { ... return; }
instead of
window.onbeforeunload = function() { ... return ''; }
.
I hope it will help you.
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