Angular 1.6 中可能未处理的拒绝

问题描述

我有一个使用 AngularJS 的代码:

I have a code with AngularJS:

service.doSomething()
  .then(function(result) {
      //do something with the result
  });

在 AngularJS 1.5.9 中，当我在 .then() 部分出现错误时，例如:

In AngularJS 1.5.9 when I have error in the .then() section like:

service.doSomething()
  .then(function(result) {
      var x = null;
      var y = x.y;
      //do something with the result
  });

我收到了明确的错误消息:

I'm getting clear error message:

TypeError: 无法读取 null 的属性 'y'

但在使用相同代码的 1.6 版中，我收到了不同的错误:

But in version 1.6 with the same code I'm getting a different error:

可能未处理的拒绝:{} undefined

我知道这与此更改有关，以及单一解决方案通过添加 .catch() 块非常简单:

I know that this is related to this change, and the single solution is quite simple by adding .catch() block:

service.doSomething()
  .then(function(result) {
      var x = null;
      var y = x.y;
      //do something with the result
  })
  .catch(console.error);

现在我又得到了我想要的东西:

Now I again have what I want:

TypeError: 无法读取 null 的属性 'y'

但是如何在不添加 .catch() 块的情况下为整个应用程序获得相同的结果(更详细的错误)?

But how to obtain the same result (more detailed error) for entire application without adding .catch() block in every single place?

我通过添加以下内容测试了建议的解决方案以禁用此功能:

I tested the suggested solution to disable this by adding:

$qProvider.errorOnUnhandledRejections(false);

但是这样情况更糟 - 我在控制台中没有任何东西！该错误在某处被吞并根本没有记录.我不确定是 AngularJS 1.6 还是我的配置有问题.

But with this the situation is even worse - I do not have ANYTHING in the console! The error is swallowed somewhere and not logged at all. I'm not sure is it a problem with AngularJS 1.6 or with my configuration.

您对如何从 1.5.9 版恢复"日志记录行为有任何想法吗?

Do you have any ideas how to "restore" logging behavior from version 1.5.9?

添加自定义错误处理程序:

Adding custom error handler:

.factory('$exceptionHandler', function($log) {
  return function(exception, cause) {
    $log.warn(exception, cause);
  };
})

根本没有帮助.在错误处理程序中，我已经收到包装"错误.

does not help at all. In the error handler I already receive the "wrapped" error.

推荐答案

此问题已通过 fix($q): 向未处理的承诺拒绝添加回溯 -- Commit 316f60f 并且修复包含在 v1.6.1 发布.

This has been fixed with fix($q): Add traceback to unhandled promise rejections -- Commit 316f60f and the fix is included in the v1.6.1 release.

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