Javascript angular2中不支持自定义标头

我在angular2中使用自定义头

“CLIENT-ID”：“company”

，后端使用jax rs。我已经修复了

accesscontrolallowheaders

和后端服务器中所有

cro

相关问题，如果我使用postman it work find，但当我尝试使用角度表单访问时，它给了我问题

Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at http://localhost:8080/parkgarau-ws/rest/login. (Reason: missing token ‘client-id’ in CORS header ‘Access-Control-Allow-Headers’ from CORS preflight channel).

我不知道是什么问题，在服务器客户端id返回null，并提供选项Respoose 200，没有响应主体

这是我的角度代码

login(loginUser: LoginUser) {
    console.log(JSON.stringify(loginUser));
    console.log(UrlConfig.BASE_URL + UrlConfig.LOGIN);
    return this._http.post(
        UrlConfig.BASE_URL + UrlConfig.LOGIN,
        JSON.stringify(loginUser),
        this.getHeaderInfo(loginUser.companyCode)
    )
        .map((response: Response) =>
            response.json()
        );

}
private getHeaderInfo(companyCode: string) {
    let headers = new Headers(

        );
    headers.append("CLIENT-ID",companyCode);
    headers.append("Content-Type", "application/json");
    headers.append("Accept", "application/json");
    console.log(headers);
    return new RequestOptions({ headers: headers });
}

这是我的http请求和响应

Request URL:http://192.168.0.108:8080/parkgarau-ws/rest/login
Request Method:OPTIONS
Status Code:200 
Remote Address:192.168.0.108:8080
Response Headers
view source
Access-Control-Allow-Credentials:true
Access-Control-Allow-Headers:origin,accept,content-type
Access-Control-Allow-Methods:GET, POST, PUT, DELETE, OPTIONS, HEAD
Access-Control-Allow-Origin:*
Access-Control-Max-Age:151200
Allow:POST,GET,PUT,OPTIONS,HEAD
Content-Length:0
Date:Thu, 16 Feb 2017 16:00:53 GMT
Server:Apache TomEE
x-responded-by:cors-response-filter

Request Headers
view source
Accept:*/*
Accept-Encoding:gzip, deflate, sdch
Accept-Language:en-US,en;q=0.8
Access-Control-Request-Headers:access-control-allow-origin, client-id, content-type
Access-Control-Request-Method:POST
Connection:keep-alive
Host:192.168.0.108:8080
Origin:http://localhost:4200
Referer:http://localhost:4200/
User-Agent:Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36

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您的后端似乎没有收到“客户端id”。这可能是由于大写字母的缘故，但从这里我可以看到这只是一个猜测。不，我也试过小写字母