[Pharo-dev] Percent-encoding problem

I have a web service where I have to use a URL with percent-encoded (URL encoded) special characters – German Umlauts – but not using UTF8 but ISO-8859-1. I have been given the following table for the „correct“ encodings: http://www.degraeve.com/reference/urlencoding.php I found out that I can use the following to get the encoding I need (%FC): ZnPercentEncoder new characterEncoder: (ZnCharacterEncoder newForEncoding: 'iso-8859-1'); encode: 'ü'. However, when I try to use the encoded URL with ZnClient ZnClient new url: 'http://example.com/%FC'; get. I get a ZnUTF8Encoder>>errorIllegalLeadingByte (Illegal leading byte for utf-8 encoding). Any help is greatly appreciated. Cheers, Bernhard