URL escaping in HTML output

Hello All,
using Saxon 6.4, i have an URL of
 /foo?rel=bar/baz
stuffed literally into the generated HTML code. Yes, it is a href
attribute of an A element. While reading the URI RFCs i got the
impression that the slash in the query string should have been
escaped as %2F. Fortunately, none of the browsers or http servers
i use has complained. Can somebody tell me whether i'm wrong or
whether it is a bug in the processor?

Thanks
J.Pietschmann

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