message: Add accept header in trees latest call
diff: @@ -361,6 +361,7 @@ async function fetchSnapshotContentsCoreV1(
  const snapshotUrl = odspResolvedUrl.endpoints.snapshotStorageUrl;
  const url = `${snapshotUrl}/trees/latest?ump=1`;
  const { body, headers } = getFormBodyAndHeaders(odspResolvedUrl, storageToken, snapshotOptions);
  + headers.accept = "application/json";
  const fetchOptions = {
  body,
  headers,
  