Angular2-SpringBoot应用程序：＆＃34;授权＆＃34;请求标题被SpringBoot

Question

＆＃34;授权＆＃34;从angular2发送的请求标头的值为＆＃34; Bearer＆＃34;但当它到达SpringBoot的过滤器时，它显示的值为＆＃34; Basic＆＃34;。
春天的安全是否超越了它？ Angular2代码：

 getGreeting(): Observable<string> {
    let headers = new Headers({ 'Authorization': 'Bearer ' + this.authenticationService.token });
    let options = new RequestOptions({ headers: headers });
    return this.http.get(document.location.pathname.substring(0, document.location.pathname.indexOf("/",2))
    +"/rest/hello",options).map(res => res.text())
}

过滤代码：
    @覆盖 public void doFilter（ServletRequest req，ServletResponse res，FilterChain chain）             抛出IOException，ServletException {

HttpServletRequest request =（HttpServletRequest）req;

    if (request.getRequestURI().contains("/rest/")) {
        String authHeader = request.getHeader("Authorization");
        if (authHeader == null || !authHeader.startsWith(Constants.BEARER)) {
            throw new ServletException(Constants.MISSING_HEADER);
        }