问带有乌鸦的C++ REST。CORS在邮件请求中

EN

XMLHttpRequest cannot load http://localhost:18080/"ENDPOINT-ROUTE" due to access control checks.

http://localhost:18080/"ENDPOINT-ROUTE"
Failed to load resource: Origin http://localhost:4200 is not allowed by Access-Control-Allow-Origin.

        CROW_ROUTE(app, "ENDPOINT-ROUTE").methods("POST"_method)([&app ,&m_session](const crow::request& req){
                crow::response response("");
                response.add_header("Access-Control-Allow-Origin", "*");

                return response;
            });

  create(object: Object)
  {
    httpOptions = {
        headers: new HttpHeaders({
          'Content-Type':  'application/json',
          'Access-Control-Allow-Headers':'*'
        })
      };

    return this.http.post<Object>("http://localhost:18080/ENDPOINT-ROUTE"), object, httpOptions);
 }