openai/codex · error

login error page template must parse: {err}

Error message

login error page template must parse: {err}

What it means

Error "login error page template must parse: {err}" thrown in openai/codex.

Source

Thrown at codex-rs/login/src/server.rs:65

use codex_utils_template::Template;
use rand::RngCore;
use serde_json::Value as JsonValue;
use tiny_http::Header;
use tiny_http::Request;
use tiny_http::Response;
use tiny_http::Server;
use tiny_http::StatusCode;
use tracing::error;
use tracing::info;
use tracing::warn;

pub(super) const DEFAULT_ISSUER: &str = "https://auth.openai.com";
const DEFAULT_PORT: u16 = 1455;
// Keep in sync with the Codex CLI Hydra redirect URI allow-list.
const FALLBACK_PORT: u16 = 1457;
static LOGIN_ERROR_PAGE_TEMPLATE: LazyLock<Template> = LazyLock::new(|| {
    Template::parse(include_str!("assets/error.html"))
        .unwrap_or_else(|err| panic!("login error page template must parse: {err}"))
});

/// Options for launching the local login callback server.
#[derive(Debug, Clone)]
pub struct ServerOptions {
    pub codex_home: PathBuf,
    pub client_id: String,
    pub issuer: String,
    pub port: u16,
    pub open_browser: bool,
    pub force_state: Option<String>,
    pub forced_chatgpt_workspace_id: Option<Vec<String>>,
    pub codex_streamlined_login: bool,
    pub login_success_page: LoginSuccessPage,
    pub cli_auth_credentials_store_mode: AuthCredentialsStoreMode,
    pub auth_keyring_backend_kind: AuthKeyringBackendKind,
    pub auth_route_config: AuthRouteConfig,
}

View on GitHub (pinned to 339751715c)

When it happens

Trigger: Thrown at codex-rs/login/src/server.rs:65 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/6d2ddd1b01c16d1f. Report an issue: GitHub.