openai/codex · error · io::Error

invalid remote control URL `{remote_control_url}`

Error message

invalid remote control URL `{remote_control_url}`

What it means

Error "invalid remote control URL `{remote_control_url}`" thrown in openai/codex.

Source

Thrown at codex-rs/app-server-transport/src/transport/remote_control/protocol.rs:245

        .join("wham/remote/control/server/refresh")
        .map_err(map_url_parse_error)?;
    let pair_url = remote_control_url
        .join("wham/remote/control/server/pair")
        .map_err(map_url_parse_error)?;
    let pair_status_url = remote_control_url
        .join("wham/remote/control/server/pair/status")
        .map_err(map_url_parse_error)?;
    let mut websocket_url = remote_control_url
        .join("wham/remote/control/server")
        .map_err(map_url_parse_error)?;
    websocket_url
        .set_scheme(if enroll_url.scheme() == "https" {
            "wss"
        } else {
            "ws"
        })
        .map_err(|()| {
            io::Error::new(
                ErrorKind::InvalidInput,
                format!("invalid remote control URL `{remote_control_url}`"),
            )
        })?;

    Ok(RemoteControlTarget {
        websocket_url: websocket_url.to_string(),
        enroll_url: enroll_url.to_string(),
        refresh_url: refresh_url.to_string(),
        pair_url: pair_url.to_string(),
        pair_status_url: pair_status_url.to_string(),
    })
}

pub(super) fn normalize_remote_control_base_url(remote_control_url: &str) -> io::Result<Url> {
    let map_url_parse_error = |err: url::ParseError| -> io::Error {
        io::Error::new(
            ErrorKind::InvalidInput,

View on GitHub (pinned to 339751715c)

When it happens

Trigger: Thrown at codex-rs/app-server-transport/src/transport/remote_control/protocol.rs:245 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/2fb2a1c94637b39d. Report an issue: GitHub.