Question

我试图从401响应中检查HttpHeaders以查看auth令牌是否需要刷新但是错误中的HttpHeaders对象没有内部我做错了或者这是一个bug，因为我可以看到chrome控制台窗口中的标题：

get Header() {
   let headers = new HttpHeaders();
   headers = headers.set('Authorization', `Bearer ${this.authService.accessToken}`);
   const options: any = { headers: headers, observe: 'response'};

   return options;
} 
Observable.interval(this.interval)
    .switchMap(() => this.http.get(this.Url, this.Header).take(1))
    .subscribe(
      (data) => { console.log('got data'); },
      (err: HttpErrorResponse) => {
        console.log(JSON.stringify(err.headers));
      }
    );

这是来自错误的控制台日志：

{"normalizedNames":{},"lazyUpdate":null,"headers":{}}

这里是从chrome

中捕获的响应标头

HTTP/1.1 401 Unauthorized
Server: Kestrel
WWW-Authenticate: Bearer error="invalid_token", error_description="The access token is no longer valid."
Access-Control-Allow-Origin: *
Request-Context: appId=cid-v1:70b5c92d-7561-44ce-ade9-dcf9c4bd6372
X-Correlation-Id: 0HLA7HBHN01NA:0000003E
X-Powered-By: ASP.NET
Date: Wed, 20 Dec 2017 10:43:13 GMT
Content-Length: 0

请注意，包含将其建议为重复的代码无法解决问题

带有HttpClient的Angular 5在错误响应中没有返回HttpHeaders

0 个答案: