Method disconnect

packages/message/window_message.ts:188–204

(ignoreAlreadyDisconnected: boolean)

  }

  disconnect(ignoreAlreadyDisconnected: boolean) {
    if (!this.target) {
      if (ignoreAlreadyDisconnected) return;
      console.warn("Attempted to disconnect on a disconnected Target.");
      // 重复 disconnect() 不应该屏蔽错误
      throw new Error("Attempted to disconnect on a disconnected Target.");
    }
    this.isSelfDisconnected = true;
    const body: WindowMessageBody<TMessage> = {
      messageId: this.messageId,
      type: "disconnect",
      data: null,
    };
    this.target.postMessage(body);
    // Note: .disconnect() will NOT automatically trigger the 'cleanup' listener
    listenerMgr.emit(`cleanup:${this.listenerId}`);
  }

  onDisconnect(callback: (isSelfDisconnected: boolean) => void) {
    if (!this.target) {