id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	blocking	blockedby
7422	Ajax abort() regression for IE in jQuery 1.4.3 (through 1.4.4rc2)	buymeasoda	snover	"There appears to be a regression with the Ajax abort() implementation in jQuery 1.4.3 through 1.4.4rc2. Ajax abort() works unexpectedly for Internet Explorer 7 (I believe it also exhibits the same unexpected behaviour in IE6). IE8 works correctly, IE9 was not tested.

'''Details:''' In-progress ajax request objects (stored in a variable) should be cancellable with the abort() method and not impact subsequent ajax requests.

'''Test case:''' To simulate ajax requests that are fired and aborted based on external actions, I created a loop that fires 10 ajax requests to fetch data from a simple script on the server that has a 1 second sleep. Each of these 10 requests is aborted, except the final request.

'''Expected / previous behaviour:''' The browser should fire 10 requests, immeadiately abort 9 and then complete the 10th request, therefore displaying the server response after 1 second.

'''Issue:''' In jQuery 1.4.3 and 1.4.4rc2, Internet Explorer displays the server response after 10 seconds (the total time of the requests added together), instead of 1 second. In jQuery 1.4.2, IE displays the response, as expected, after 1 second.

'''Sample JavaScript code:'''
{{{
var ajax;

for (var i = 0; i < 10; i++) {
	ajax = $.ajax({
		url: 'data.php',
		cache: false,
		success: function(data) {
			$('body').append(data);
		}
	});
	if (i < 9) {
		ajax.abort();
	}
}
}}}

'''Sample data.php file:'''
{{{
<?php
sleep(1);
?>
Data from server
}}}"	bug	closed	blocker	1.4.4	ajax	1.4.3	fixed	regression