在使用nestjs的websocket时，开启ssl，nestjs服务能使用https访问了，但是websocket却无法使用wss连接

nestjs的github issues中有相关问题，但是没有给出解决方案。经测试，发现WebSocketGateway不配置端口，直接使用nestjs服务的端口号连接即可

// main.ts
import { NestFactory } from '@nestjs/core';
import { AppModule } from './app.module';
import * as fs from 'fs'
const httpsOptions = {
  key: fs.readFileSync('D:/wstStudy/webrtc/server.key'),
  cert: fs.readFileSync('D:/wstStudy/webrtc/server.crt'),
};
async function bootstrap() {
  const app = await NestFactory.create(AppModule, {
    httpsOptions
  });


  await app.listen(3000, '0.0.0.0');
}
bootstrap();

// socket.gateway.ts
import { WebSocketGateway, SubscribeMessage, MessageBody, OnGatewayConnection, OnGatewayInit, OnGatewayDisconnect, ConnectedSocket } from '@nestjs/websockets';
import { SocketService } from './socket.service';
// 这里不要配置端口号
@WebSocketGateway({ transports: ['websocket'], cors: '*'})
export class SocketGateway implements OnGatewayConnection, OnGatewayDisconnect, OnGatewayInit {
  rooms: Set<string>
  user: Map<string, string>
  constructor(private readonly socketService: SocketService) {
    this.rooms = new Set()
    this.user = new Map()
  }

  afterInit(server: any) {
      
  }

  handleConnection(client: any, ...args: any[]) {
  }
  
  handleDisconnect(client: any) {
      
  }

  @SubscribeMessage('chat')
  chat(@MessageBody() message: { room: string, msg: string }, @ConnectedSocket() client) {
    client.to(message.room).emit('message', message.msg, this.user.get(client.id))
  }
}

// 客户端
import { io } from 'socket.io-client'
const socket = io('https://192.168.3.22:3000', {
    transports: ['websocket'],
    query: {
    }
  })