Synology Docker Container open terminal socket closed error.

Checklist

• Have you pulled and found the error with jc21/nginx-proxy-manager:latest docker image?
  • Yes
• Are you sure you're not using someone else's docker image?
  • Yes
• Have you searched for similar issues (both open and closed)?
  • Yes

Describe the bug
The Synology Nas web page is accessed normally, but the opening terminal in the docker container indicates that the socket is closed, and the error occurs whether add custom /docker/wslocation or not.

The chrome web developer tools - network error is as follows:
WebSocket connection to 'wss://mydomain:myport/docker/ws' failed: WebSocket is closed before the connection is established.

Additional information:
The websocket connection on the home page is normal：
request url: wss://mydomain:myport//synoscgi.sock/socket.io/?Version=xx

Nginx Proxy Manager Version
v2.11.1

To Reproduce
Steps to reproduce the behavior:

1. Go to 'Container Manager', select one container and enter detail.
2. Click on handle, select open terminal
3. See error

Screenshots

Operating System
Synology DSM 7.2-64570 Update 1

No source file or test is named in the report. Start by reproducing the terminal WebSocket failure using the listed Container Manager steps on Synology DSM, then trace the Docker terminal connection entry point; done means the terminal opens successfully without the socket closing.