OAuth callback server was shut down before receiving a respo

Error message

OAuth callback server was shut down before receiving a response

What it means

Error "OAuth callback server was shut down before receiving a response" thrown in zed-industries/zed.

Source

Thrown at crates/context_server/src/oauth.rs:1103

/// redirect URI in the authorization request, open the browser, then await
/// the future to receive the callback.
///
/// The server accepts exactly one request on `/callback`, validates that it
/// contains `code` and `state` query parameters, responds with a minimal
/// HTML page telling the user they can close the tab, and shuts down.
///
/// The callback server shuts down when the returned future is dropped (e.g.
/// because the authentication task was cancelled), or after a timeout.
pub fn start_callback_server() -> Result<(String, BoxFuture<'static, Result<OAuthCallback>>)> {
    let (redirect_uri, rx) = oauth_callback_server::start_oauth_callback_server()?;
    let future = async move {
        match rx.await {
            Ok(Ok(params)) => Ok(OAuthCallback {
                code: params.code,
                state: params.state,
            }),
            Ok(Err(e)) => Err(e),
            Err(_) => Err(anyhow!(
                "OAuth callback server was shut down before receiving a response"
            )),
        }
    }
    .boxed();
    Ok((redirect_uri, future))
}

// -- JSON fetch helper -------------------------------------------------------

async fn fetch_json<T: serde::de::DeserializeOwned>(
    http_client: &Arc<dyn HttpClient>,
    url: &Url,
) -> Result<T> {
    validate_oauth_url(url)?;

    let request = Request::builder()
        .method(http_client::http::Method::GET)

View on GitHub (pinned to bc538def45)

When it happens

Trigger: Thrown at crates/context_server/src/oauth.rs:1103 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of zed-industries/zed@bc538def45 (2026-08-16). Data as JSON: /api/errors/f6378d08feb85707. Report an issue: GitHub.