export async function requestBodyForHttp1(body, signal, maxBytes = 25 * 1024 * 1024) {
  if (!body || typeof body.getReader !== "function") return body;
  const reader = body.getReader(), chunks = [];
  let size = 0;
  try {
    while (true) {
      if (signal?.aborted) throw new DOMException("Aborted", "AbortError");
      const {done, value} = await reader.read();
      if (signal?.aborted) throw new DOMException("Aborted", "AbortError");
      if (done) break;
      size += value.byteLength;
      if (size > maxBytes) throw new Error("This prototype supports uploads up to 25 MB.");
      chunks.push(value);
    }
    return new Blob(chunks);
  } catch (error) {
    try { await reader.cancel(); } catch { /* preserve original error */ }
    throw error;
  } finally { reader.releaseLock(); }
}