Websocket upgrade fails on unix socket about gun HOT 4 OPEN

Please add trace => true to the map given to open_unix so we can see what's going on.

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I've attached the trace, I don't see anything obvious at first glance: trace.txt

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Right the problem is with the host header, since you are using a Unix socket you will need to provide the host header for every request you make as Gun is not able to figure it out and sends garbage.

Gun should not send garbage so this ticket should remain open, and I believe users of unix sockets will be required to provide the host themselves as we cannot guess it in this scenario so the documentation should be updated to reflect that.

Thanks for the trace!

from gun.

Thanks! That fixed it for me. For anyone coming here with the same issue, this was my change:

streamref = :gun.ws_upgrade(pid, '/ws', [{<<"host">>, <<"localhost">>}])

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