我的登录不可见流控制通过Http Interceptor和Observable获得新令牌

Question

我正在尝试使用HttpInterceptor实现刷新登录，问题是流程不是所需的流程。要获取新令牌，我需要使用用户名和密码进行隐形登录。

我的拦截器是：

 intercept(request: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
    let token = localStorage.getItem('TOKEN');
    let clone: HttpRequest<any>;
    if (token) {
      let idUser = JSON.parse(this.jwtHelper.decodeToken(token).id);
      if (idUser == localStorage.getItem('idUser')) {
        if (this.jwtHelper.isTokenExpired(token)) {
          this._up.loginInvisibleEmail().subscribe(res => {
            console.log("Token Refrescado con Email");
          }, error2 => {
            //TODO CATCH ERROR
            console.log("Error obteniendo refrescando token");
          });
        };
        clone = request.clone({
          setHeaders: {
            Accept: `application/json`,
            'Content-Type': `application/json`,
            Authorization: `Bearer ${token}`
          }
        });
      } else {
        console.log("idUser diferentes");
        this._ctp.cleanStorage();
        let nav = this.app.getActiveNav();
        nav.setRoot('Login');
      }
    }else {
      console.log("Without TOKEN");
      clone = request.clone({
        setHeaders: {
          Accept: `application/json`,
          'Content-Type': `application/json`
        }
      });
    }
    console.log("HI INTERCEPTOR");
    return next.handle(clone);
  }

为我提供新令牌的服务是：

  loginInvisibleEmail() {
    let postParams = {"email": localStorage.getItem("name"), "password": localStorage.getItem("password")};
    let url = URL_SERVICIOS + "/auth";
    let headers = new Headers();
    headers.append('Content-Type', 'application/json');
    let options = new RequestOptions({headers: headers});
    return this.http2.post(url, JSON.stringify(postParams), options)
      .map(resp => {
        let data_resp = resp.json();
        if (data_resp.error) {
          this._ctp.cleanStorage();
          let nav = this.app.getActiveNav();
          nav.setRoot('Login');
        } else {
          localStorage.removeItem("TOKEN");
          localStorage.setItem('TOKEN', data_resp.result['access_token']);
        }
      }, (error: any) => {
        this._ctp.cleanStorage();
        let nav = this.app.getActiveNav();
        nav.setRoot('Login');
      });
  }

我正在尝试使用此方法删除具有过期令牌的元素，以检查流程。

deleteEducation(id): Observable<any> {
    let url = URL_SERVICIOS + '/users/educative-experience/' + id;
    // let headers = new HttpHeaders().set('Authorization', 'Bearer ' + localStorage.getItem('TOKEN'));
    return this.http
      .delete(url)
      .map(resp => {
        return resp['result'];
      })
  }

结果流为：

https://prnt.sc/lhdbxa

我需要先删除刷新令牌，在这种情况下，我第一次删除它会失败，但是它会刷新令牌，就像最后一步一样；如果第二次删除它，则它会正常工作，因为令牌之前是刷新的。

我该如何在第一次刷新令牌？

谢谢。