On 21 February 2015 at 20:43, Anne van Kesteren <ann...@annevk.nl> wrote: > High-byte of what? A URL is within ASCII range when it reaches the > server. This is the first time I hear of this.
Apparently, all sorts of muck floats around the Internet. When we did HTTP/2 we were forced to accept that header field values (URLs in particular) were a sequence of octets. Those are often interpreted as strings in various interesting ways. I wouldn't *completely* discount the potential for the conversions Jonas mentions here. A Java server might parse UTF-8 into the internal UTF-16 representation and then who knows what happens next.