Is there any difference between dev & prod in Durable Object websocket server?

Hello, I am trying to use Websocket Server that built on Durable object for Minecraft, that connects web to Minecraft by using /connect command(known as /wsserver).

The app that I created is fully working on Developing environment, however, it is not working on production deployment. Is there any differences of behaviour between development enviroment(by wrangler dev) and production?

as a reference, this is code of it

export class Instances extends DurableObject {
  async fetch(request: Request): Promise<Response> {
    const webSocketPair = new WebSocketPair();
    const [client, server] = Object.values(webSocketPair);

    return new Response(null, {
      status: 101,
      webSocket: client,