Connection refused: The proxy could not connect ot

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Description

While debugging issue https://github.com/abhinavsingh/proxy.py/issues/43 I ran into the following error page:

which hinted towards a certain bug during communicating between vpnkit and proxy.py container. For some reason, client connections to proxy.py are closed soon after proxy.py has received the client request, resulting in a tight retry request loop. See my https://github.com/abhinavsingh/proxy.py/issues/43#issuecomment-465841635 for more debugging details.

Any ideas where things might be going wrong here?

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