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gwpl/Solution to Puzzle: 127.0.0.1:1234 works, but localhost:1234 does not.md Secret

Created July 12, 2024 10:03
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Solution to Puzzle: 127.0.0.1:1234 works, but localhost:1234 does not under https://gist.github.com/gwpl/92207935c22080490f311254cd6c8f33
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Solution to Puzzle: 127.0.0.1:1234 works, but localhost:1234 does not.md

Solution to Puzzle: 127.0.0.1:1234 works, but localhost:1234 does not

under https://gist.github.com/gwpl/92207935c22080490f311254cd6c8f33

When we force IPv4 or IPv6 we see problem:

$ curl -4 http://localhost:6942  # Force IPv4
{"message":"OpenRouter PHP Proxy","version":"1.0.0","status":"running"}$ 
$ curl -6 http://localhost:6942  # Force IPv6
curl: (56) Recv failure: Connection reset by peer

Browser via localhost tries to talk via IPv6 and curl by default as well (on given machine).

And server/docker is not configured to support IPv6.

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