Go's http.client::send() always closes req.Body, so if the first request attempt
is unsuccessful, any subsequent requests after calling the CredentialsCallback
will attempt to read/write on a closed pipe.
(cherry picked from commit 9db5de109c166aa802b85cfae2dced3c4728a00d)
This prevents error "read/write on closed pipe".
Go's http.client::send() always closes req.Body, so if the first request attempt is unsuccessful, any subsequent requests after calling the
CredentialsCallback
will attempt to read/write on a closed pipe.(cherry picked from commit 9db5de109c166aa802b85cfae2dced3c4728a00d)