The restriction goes back to the XML standard: https://www.w3.org/TR/xmlbase/#granularity
Hans-Juergen Rennau <hren...@yahoo.de> schrieb am Mo., 28. Aug. 2023, 16:39: > A pity (for me), because I need to preserve the information about an > element's origin without changing the element by adding a clumsy @xml:base. > > Out of luck. > > Kind regards, > Hans-Jürgen > > > > Am Montag, 28. August 2023 um 16:11:56 MESZ hat Christian Grün < > christian.gr...@gmail.com> Folgendes geschrieben: > > > after manifold motions making little speed it dawned on me that the > problem occurs if the node in question is an element node, rather than the > document node, as demonstrated by this query: > > > Thanks. This behavior is compliant with the spec: A copied element loses > its reference to the document node providing the base URI. > > Hope this helps, > Christian > >