Document that the folder/destination_folder argument of
sqlpage.persist_uploaded_file must be chosen by the app author and never
derived from untrusted request data. It is joined directly to the web
root, so a value containing '..' or an absolute path would write the
uploaded file outside the web root. Docs-only clarification of existing
intended behavior; no logic change.
Ophir LOJKINE
abd60cd8d2