在Meteor中启用跨源资源共享？(Enable cross-origin resource sharing in Meteor?)

 我正在尝试从主应用程序到外部角度应用程序获取通道列表。 
 
 我已经将https://github.com/stubailo/meteor-rest/blob/master/packages/rest/README.md添加到我的主流星应用程序中，现在我可以使用json格式的URL获取该集合。 
 
 现在，当我尝试从外部角度应用程序的http请求时出现问题。 
 
 这是我在主流星应用程序中的内容： 
 
'use strict'

Meteor.publish('channels', function (index) {
  return Channels.find({});
}, {
    url: 'channels',
    httpMethod: 'get'
});
 
 这是我用来在外部角度应用程序中发出http请求的内容： 
 
// Simple GET request example:
$http.get('http://example.com/channels').then(function successCallback(response) {
    // this callback will be called asynchronously
    // when the response is available
    console.log('success');
    console.log(response);
  }, function errorCallback(response) {
    // called asynchronously if an error occurs
    // or server returns response with an error status.
    console.log('error');
    console.log(response);
  });
 
 但我得到的回应是错误： 
 
 XMLHttpRequest cannot load http://example.com/channels. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost' is therefore not allowed access. 
 
 我该怎么做才能解决这个问题？ 

I'm trying to get a list of channels from my main application to an external angular app.
 
I've added https://github.com/stubailo/meteor-rest/blob/master/packages/rest/README.md to my main meteor app and now I can get the collection with a url as json format.
 
Now the problem comes when I try to http request from the external angular app.
 
Here's what I have in my main meteor app:
 
'use strict'

Meteor.publish('channels', function (index) {
  return Channels.find({});
}, {
    url: 'channels',
    httpMethod: 'get'
});
 
and here's what I use to make the http request in the external angular app:
 
// Simple GET request example:
$http.get('http://example.com/channels').then(function successCallback(response) {
    // this callback will be called asynchronously
    // when the response is available
    console.log('success');
    console.log(response);
  }, function errorCallback(response) {
    // called asynchronously if an error occurs
    // or server returns response with an error status.
    console.log('error');
    console.log(response);
  });
 
But what I get in response is an error:
 
XMLHttpRequest cannot load http://example.com/channels. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost' is therefore not allowed access.
 
What can I do to fix this?

原文：https://stackoverflow.com/questions/35492462