openai/codex · error · anyhow::Error

invalid header name {name:?}: {err}

Error message

invalid header name {name:?}: {err}

What it means

Error "invalid header name {name:?}: {err}" thrown in openai/codex.

Source

Thrown at codex-rs/network-proxy/src/mitm_hook.rs:629

                    return Err(anyhow!("secret_env_var must not be empty"));
                }
            }
            (None, Some(secret_file)) => {
                let _ = parse_secret_file(secret_file)?;
            }
            _ => {
                return Err(anyhow!(
                    "expected exactly one of secret_env_var or secret_file"
                ));
            }
        }
    }
    Ok(())
}

fn parse_header_name(name: &str) -> Result<HeaderName> {
    HeaderName::from_bytes(name.as_bytes())
        .map_err(|err| anyhow!("invalid header name {name:?}: {err}"))
}

fn parse_secret_file(path: &str) -> Result<AbsolutePathBuf> {
    if path.trim().is_empty() {
        return Err(anyhow!("secret_file must not be empty"));
    }
    let path = Path::new(path);
    if !path.is_absolute() {
        return Err(anyhow!("secret_file must be an absolute path: {path:?}"));
    }
    AbsolutePathBuf::from_absolute_path(path)
        .with_context(|| format!("secret_file must be an absolute path: {path:?}"))
}

#[cfg(test)]
mod tests {
    use super::*;
    use crate::NetworkMode;

View on GitHub (pinned to 339751715c)

When it happens

Trigger: Thrown at codex-rs/network-proxy/src/mitm_hook.rs:629 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of openai/codex@339751715c (2026-08-25). Data as JSON: /api/errors/867d3621e98fdc8d. Report an issue: GitHub.