Function orFail

examples/pdf-server/server.ts:1043–1044

(p: Promise<T>)

  try {
    const transport = new PdfCacheRangeTransport(url, totalBytes, readPdfRange);
    const orFail = <T>(p: Promise<T>): Promise<T> =>
      Promise.race([p, transport.failed]);
    const pdfDoc = await orFail(
      getDocument({
        range: transport,