- Allow file:// and existing local paths in DownloadFile validation (useful when ComfyUI passes cached files).
- Load local files directly; keep http/https with UA header.
- Raise clear errors instead of returning silent zero tensors on failed/empty downloads.
Fix DownloadFile node to fail on empty downloads
- Add explicit User-Agent to HTTP downloads.
- Raise errors on failed/empty downloads instead of returning silent zero tensors