所以，你看，这个问题主要是因为角度的$ HTTP很烂。我们对此深感抱歉。

So, you see, this issue is mostly because angular's $http sucks. Sorry about that.

让我们尝试使用蓝鸟库，因为它提供了很长的堆栈跟踪。

Let's try to use the bluebird library, because it provides long stack traces.

Promise.longStackTraces();
Promise.resolve($http.get('...'));

您得到下面的堆栈跟踪：

You get the following stack trace:

Possibly unhandled Error: [object Object]
    at Promise$_rejectFromThenable (http://cdn.jsdelivr.net/bluebird/1.2.4/bluebird.js:4736:52)
    at wrappedErrback (https://code.angularjs.org/1.3.0-beta.5/angular.js:11334:78)
    at wrappedErrback (https://code.angularjs.org/1.3.0-beta.5/angular.js:11334:78)
    at wrappedErrback (https://code.angularjs.org/1.3.0-beta.5/angular.js:11334:78)
    at https://code.angularjs.org/1.3.0-beta.5/angular.js:11467:76
    at Scope.$eval (https://code.angularjs.org/1.3.0-beta.5/angular.js:12418:28)
    at Scope.$digest (https://code.angularjs.org/1.3.0-beta.5/angular.js:12230:31)
    at Scope.$apply (https://code.angularjs.org/1.3.0-beta.5/angular.js:12522:24)
    at done (https://code.angularjs.org/1.3.0-beta.5/angular.js:8207:45)
    at completeRequest (https://code.angularjs.org/1.3.0-beta.5/angular.js:8412:7) 

（ Plunker这里。）

最重要的线是第一条：可能未处理的错误：[对象的对象]

The most important line is the first: Possibly unhandled Error: [object Object].

是的。一个对象被抛出，而不是一个真正的错误对象，用堆栈属性附加到它。对于参考，这里是如何抛出一个错误，并保持它的栈与它一起：https://github.com/Ralt/newerror/blob/master/index.js

Yep. An object is thrown, not a real Error object, with the stack property attached to it. For the reference, here is how to throw an error and keep its stack along with it: https://github.com/Ralt/newerror/blob/master/index.js

那么，如何解决这一问题？这取决于以下几个决定：

So, how to fix this? It depends on several decisions:

• 请你想添加一个适当的承诺lib中，使长的堆栈跟踪？
• 请您要使用另一个XHR的lib抛出纠正错误？

蓝鸟。 AFAIK，它是提供长期的堆栈跟踪的几个之一，它是最快的国家之一在那里。

If you want to add a real Promise lib, use bluebird. AFAIK, it is one of the few that provides long stack traces, and it is the fastest one out there.

有关适当XHR LIB抛出真正的错误，我怕你的运气那里。编写一个自定义的与您希望浏览器的支持是不是真的很难，但。由于没有IE8的支持，这工作（使用蓝鸟）：

For a proper xhr lib that throws real errors, I'm afraid you're out of luck there. Writing a custom one with the support for browsers you want isn't really hard though. With no IE8 support, this works (with bluebird):

function xhr(url) {
    return new Promise(function(resolve, reject) {
        var xhr = new XMLHttpRequest();
        xhr.onload = function() {
            resolve(xhr.responseText);
        };
        xhr.onerror = reject;
        xhr.open('GET', url);
        xhr.send();
    });
}

（ Plunker这里。）

正如你所看到的堆栈跟踪信息：

As you can see, the stack trace is informative: