"tornado.access:404 GET" when using behind a web backend

[quadratecode]

Hi

I have tried using a PyWebIO app behind a web backend as described here.

I set the web backend to direct traffic from the URL www.example.com/tools/app to port 5000 and then started the tornado server as described in the docs on the same port, like so:

if __name__ == '__main__':
    platform.tornado.start_server(main, port=5000, host="0.0.0.0", debug=True)

This starts the server as expected: Listen on 0.0.0.0:50000 and the web backend reports that it sees the PyWebIO app listening.

However, upon trying to access the app on www.example.com/tools/app, it returns: WARNING:tornado.access:404 GET /tools/app.

Is this something that stems from the PyWebIO configuration or should I take this up with my hoster?

Thanks in advance!

[quadratecode]

For anyone also hosting on Uberspace and running into the same problem: The solution is to remove the prefix as described here.