javascript - ajaxStop() 不触发

Question

这是无效的代码:

$(document).ajaxStop(function() {
    $(this).unbind("ajaxStop"); //prevent running again when other calls finish

    // Display everything
    display();
});

这是我的 Ajax 函数:

function getAjax(url, callback) {
    jQuery.ajaxPrefilter(function( options ) {
        options.global = true;
    });

    $.ajax({
        url: url,
        type: "GET",
        dataType: "jsonp",
        success: callback
    });
}

为什么 ajaxStop() 永远不会触发？

Answer 1

您会注意到我正在发出 JSONP 请求。我花了很长时间才找到这个，但可以找到这个问题的答案here .

来自工单:

JSONP requests are not guaranteed to complete (because errors are notcaught). jQuery 1.5 forces the global option to false in that case sothat the internal ajax request counter is guaranteed to get back tozero at one point or another.

If you want all requests to fire the events, no matter what (and at the risk of the same inconsistencies 1.4.4 exhibited), you can use the following prefilter:

jQuery.ajaxPrefilter(function( options ) {
    options.global = true;
});

Case in point: http://jsfiddle.net/X4JTx/