First ever to be awarded the xslt-2.0 gold badge, even ahead of Dimitre Novatchev and Michael Kay. Now please start using XSLT 3.0 and asking xslt-3.0 questions so I don't get bored.
As http://xsltransform.net/ never got updated to newer Saxon versions and especially Saxon 9.8 (the first Saxon version to support the XSLT 3 spec finalized in June 2017) I have set up https://xsltfiddle.liberty-development.net/ which uses the .NET version of Saxon 9.8 HE to allow testing and sharing XSLT 3 samples.