Function fetchChildrenOnce

public/js/folderManager.js:1310–1339

(folder)

   Fetch children (lazy)
----------------------*/
async function fetchChildrenOnce(folder) {
  if (_childCache.has(folder)) return _childCache.get(folder);
  const qs = new URLSearchParams({ folder });
  qs.set('limit', String(PAGE_LIMIT));
  qs.set('probe', '0');
  const p = (async () => {
    const res = await fetch(`/api/folder/listChildren.php?${qs.toString()}`, { method: 'GET', credentials: 'include' });  
    const body = await safeJson(res);

    const raw = Array.isArray(body.items) ? body.items : [];
  const items = raw
    .map(normalizeItem)
    .filter(Boolean)
    .filter(it => {
      const s = it.name.toLowerCase();
      return (
        s !== 'trash' &&
        s !== 'profile_pics' &&
        !s.startsWith('resumable_')
      );
    });

    const payload = { items, nextCursor: body.nextCursor ?? null };
    // Replace the promise with the resolved payload for future callers
    _childCache.set(folder, payload);
    return payload;
  })();
  _childCache.set(folder, p);
  return p;
}
async function loadMoreChildren(folder, ulEl, moreLi) {
  const cached = await _childCache.get(folder);
  const cursor = cached?.nextCursor || null;