Function createWwwAuthenticateCaptureFetch

src/node/services/mcpServerManager.ts:356–373

()

}

function createWwwAuthenticateCaptureFetch() {
  let capturedHeader: string | null = null;

  // @ai-sdk/mcp expects a full fetch implementation (including static helpers like
  // preconnect), so wrap the call path while preserving the original function shape.
  const fetchWithCapture = Object.assign(async (...args: Parameters<typeof fetch>) => {
    const response = await fetch(...args);
    if (!capturedHeader && (response.status === 401 || response.status === 403)) {
      capturedHeader = extractHeaderValue(response.headers, "www-authenticate");
    }
    return response;
  }, fetch) as typeof fetch;

  return {
    fetch: fetchWithCapture,
    getCapturedHeader: () => capturedHeader,
  };
}

async function extractBearerOauthChallenge(options: {
  error: unknown;