Angular 2 http未设置标头

var headers = new Headers();
headers.set('Authorization','Bearer xxxxxxxxxxx'); 

this.http.get('http://localhost:8080/outputEndpoints',{
  headers: headers
}).
map(res => res.text())

.subscribe(
  data=> console.log(data),error=> console.log("Getting Error") 
);

有了这个,我期望标题是：

Accept:*/*
Accept-Encoding:gzip,deflate,sdch,br
Accept-Language:es,ca;q=0.8,en-GB;q=0.6,en;q=0.4,fr;q=0.2
Access-Control-Request-Headers:authorization,content-type
Authorization: "Bearer xxxxxxxxxxxx"
Access-Control-Request-Method:GET
Connection:keep-alive
Host:localhost:8080
Origin:http://localhost:3000
 Referer:http://localhost:3000/
 User-Agent:Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36    (KHTML,like Gecko) Chrome/56.0.2924.87 Safari/537.36

相反,我得到以下内容(没有使用令牌授权)：

Accept:*/*
Accept-Encoding:gzip,content-type
Access-Control-Request-Method:GET
Connection:keep-alive
Host:localhost:8080
Origin:http://localhost:3000
Referer:http://localhost:3000/
User-Agent:Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36   (KHTML,like Gecko) Chrome/56.0.2924.87 Safari/537.36

编辑：

一般信息是：

Request URL:http://localhost:8080/outputEndpoints
Request Method:OPTIONS
Status Code:401 
Remote Address:[::1]:8080

所以OPTIONS调用失败了.在其他应用程序中,一旦OPTIONS调用被接受,它就会在GET请求中找到设置的身份验证令牌.这意味着由于某种原因OPTION调用它不被接受.

使用CURL或SOAP UI进行调用时,它工作正常,因此我认为它不是CORS的问题.我是对的？

任何想法或指南都会非常有用.