Steve Jorgensen wrote:
 <snip>
> When escape is supplied (typically "%") it is used as the escape character
> in the same way that "%" is used in URL encoding. When a non-ASCII character 
> is escaped,
> it is represented as a sequence of encoded bytes/octets.

I neglected to say that the octet sequence would be for the UTF-8 
representation of the non-ASCII character. This is consistent with ECMAScript's 
`encodeURI` (see https://www.ecma-international.org/ecma-262/5.1/#sec-15.1.3).

Also, to clarify why this is needed, it is for when there are non-ASCII control 
characters such as \u2066 (Left-to-Right Isolate) in the given name value and 
control characters are not being allowed. Other non-ASCII Unicode characters 
are permitted, so this is not applicable to those.
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