我目前遇到了一个问题，在我的Vert.x应用程序中包含必要的CORS头。尽管尝试了this Stack Overflow post中提供的解决方案，但我仍无法成功地将头添加到响应中。当尝试从前端发送请求时，我收到以下错误消息：

Acess to XMLHttpRequest at 'http://localhost:8081/api' from origin 'http://localhost:4287' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.

我的HttpServerVerticle类中的相关代码片段如下：

> public class HttpServerVerticle extends AbstractVerticle {

    @Override
    public void start(Promise<Void> startPromise) {
        ApiServiceApiHandler apiHandler = new ApiServiceApiHandler(new ApiServiceApiImpl());

        RouterBuilder.create(vertx, specFile)
                .map(builder -> {
                    builder.setOptions(
                            new RouterBuilderOptions()
                                    // For production use case, you need to enable this flag and provide the
                                    // proper security handler
                                    .setRequireSecurityHandlers(false));

                    vertx.eventBus().registerDefaultCodec(DBUserRequest.class, new LocalEventBusCodec<>(DBUserRequest.class));
                    vertx.eventBus().registerDefaultCodec(ArrayList.class, new LocalEventBusCodec<>(ArrayList.class));

                    apiHandler.mount(builder);

                  Router router = builder.createRouter();

                    router.route().handler(CorsHandler.create("http://localhost:4287")
                            .allowedMethod(io.vertx.core.http.HttpMethod.GET)
                            .allowedMethod(io.vertx.core.http.HttpMethod.POST)
                            .allowedMethod(io.vertx.core.http.HttpMethod.OPTIONS)
                            .allowCredentials(true)
                            .allowedHeader("Access-Control-Allow-Method")
                            .allowedHeader("Access-Control-Allow-Origin")
                            .allowedHeader("Access-Control-Allow-Credentials")
                            .allowedHeader("Content-Type"));

              router.errorHandler(400, new ExceptionHandler());
              router.errorHandler(405, new ExceptionHandler());
              router.errorHandler(404, new ExceptionHandler());


                    return router;

                })
               .compose(router->vertx.createHttpServer(options).requestHandler(router).listen(Vertx.currentContext().config().getInteger(ConfigConstants.PROPERTY_SERVICE_HTTP_PORT));
.onSuccess(server -> logger.info("Http verticle deploy successful"))

我将非常感谢任何指导或建议，以解决上述CORS问题。
我已经尝试了这个链接中提到的解决方案-CORS issue in vertx Application not working
我也试过将原点改为“.*.”，但结果是一样的。