document.requestStorageAccess() may not be called on a document with an opaque origin, such as a sandboxed iframe without allow-same-origin in its sandbox attribute.
document.requestStorageAccess() njesmějo se na dokumenśe z obskurneju slězynu wołaś, ako na pś. iframe pěskowego kašćika bźez „allow-same-origin“ w jogo atribuśe pěškowego kašćika.