How to shutdown a JupyterDash app in external mode?

Hi,

I’m running app.run_server(debug=True, mode='external') from a jupyter notebook and my app runs on http://127.0.0.1:8050/.

Is there a way to shutdown the server without restarting the jupyter kernel?

(So that the address is free for another app, for example, to run from the command line - which currently produces OSError: [Errno 98] Address already in use.)

I tried to run requests.post('http://127.0.0.1:8050/shutdown') which I found here - Shutdown dash app after n seconds, but I get <Response [500]>.

Thanks, JupyterDash is a great addition by the way!

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