Vue.js 如何修复套接字 io 中的 400 错误错误请求

我有一个前端应用程序(VUE JS)

我有一个后端(Nest JS)

Vue JS应用程序使用Vue套接字通过WebSocket从后端获取数据.io扩展库

轮询xhr.js？d33e:229邮政编码

How can I fix this error?

我认为它与库无关，我只是try 了socket io库，结果是一样的.

服务器正在工作，因为它会发送日志(log)并显示连接的用户:

Server(Nest JS)

async function bootstrap() {
  const app = await NestFactory.create(AppModule);
  app.enableCors();
  await app.listen(11050);
}
bootstrap();

应用程序.网关:

@WebSocketGateway()
export class AppGateway implements OnGatewayInit, OnGatewayConnection, OnGatewayDisconnect {


  private logger: Logger = new Logger('AppGatway');

  @SubscribeMessage('msgToServer')
  handleMessage(client: Socket, text: string): WsResponse<string> {
    return { event: 'msgToClient', data: text };
  }

  afterInit(server: Server) {
    this.logger.log('Initialised!');
  }

  handleConnection(client: Socket, ...args: any[]): any {
    this.logger.log(`Client connected: ${client.id}`);
  }

  handleDisconnect(client: Socket): any {
    this.logger.log(`Client disconnected: ${client.id}`);
  }
}

Frontend(Vue JS):

import VueSocketIOExt from "vue-socket.io-extended";
import Vue from "vue";
import io from "socket.io-client";
const socket = io("http://localhost:11050/");

Vue.use(VueSocketIOExt, socket);

data: () => ({
socket: null,
    connection: null,
    sockets: {
      connect() {
        console.log("socket connected");
      },
    },
}