未处理的拒绝原因（应为空） [英] Unhandled rejection reasons (should be empty)

问题描述

我正在使用Q进入promises模式，我不断收到警告[Q]未处理的拒绝原因（应该是空的）在控制台中。我做错了什么？

I'm getting into promises pattern with Q and I keep getting warning "[Q] Unhandled rejection reasons (should be empty)" in console. What em I doing wrong?

http：// jsfiddle .net / FpyDr / 1 /

function load(url) {
    var deferred = Q.defer();

    $.ajax({
        type: "GET",
        processData: false,
        dataType: "html",
        url: url,
        cache: false
    }).done(function (response, status, xhr) {

        deferred.reject(new Error("test error"));

        return;
    }).fail(function (xhr, status, error) {

        deferred.reject(new Error("ajax failed"));

        return;
    });

    return deferred.promise;
}

load("http://fiddle.jshell.net")
    .then(function (result) {
        console.log("got result", typeof(result));
    })
    .catch(function (error) {
        console.log("got error", error);
        return true;
    })
    .done();

推荐答案

基于这个令人困惑的讨论这是误报。

要使记录静音，您可以这样做：

To silence the logging you can do this:

Q.stopUnhandledRejectionTracking();

如果你没有捕获拒绝，它会抛出错误，所以你仍然会看到它在添加上面的代码后在控制台中。 JSFiddle： http://jsfiddle.net/homeyer/FpyDr/22/

If you didn't capture the rejection it would throw the error, so you'll still see it in the console after adding the code above. JSFiddle: http://jsfiddle.net/homeyer/FpyDr/22/

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