jquery, .unload() doesn't work

Question

Any idea why this code works:

$.ajax({
    type: 'GET', 
    url: 'delete_image.php'
});

And this one doesn't:

$(window).unload(function() {
    $.ajax({
        type: 'GET', 
        url: 'delete_image.php' 
    });
});

In delete_image.php, I just have:

unlink('test.jpg');

@Spokey so if I'm using version 1.9.1 .unload() won't work??? — user2461031
– user2461031, Commented Jul 16, 2013 at 12:50
@Spokey If it's deprecated but not yet removed, it should still work. — Barmar
– Barmar, Commented Jul 16, 2013 at 12:50
@Ohgodwhy I just tried $(window).on('unload', function(){ but it still doesn't work — user2461031
– user2461031, Commented Jul 16, 2013 at 12:50

Spokey · Accepted Answer · 2013-07-16 13:00:06Z

2

It seems that depending on what browser you are using, the browser won't wait for the ajax call to complete before the page reload. This seems to work with async:false;

$(window).unload(function() {
    $.ajax({
        type: 'GET', 
        url: 'delete_image.php',
        async:false 
    });
});

FIDDLE - Click Run in JsFiddle to unload

answered Jul 16, 2013 at 13:00

Spokey

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3 Comments

Bob Over a year ago

i suspected that the request was not really successful and didn't arrive in the server.

Bob Over a year ago

as of jQuery1.8 async is deprecated it's advice to use the success callback api.jquery.com/jQuery.ajax

user2461031 Over a year ago

Thanks for your answer, first place it didn't work, then I tried with $(window).on('unload', function(){ and now it seems ok, anyway, thanks a lot!!!

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