> On Apr 13, 2017, at 7:30 AM, dnsop-requ...@ietf.org wrote:
>
> Well, IIRC they sensibly converged on a case-folded normal form
> that ensures that https://Духовный.org maps to the same underlying
> wire-form domain as https://духовный.org, i.e. both result in
> queries for xn--b1adqpd3ao5c.org. AFAIK, those would generally be
> different domains under IDNA2008.
What I should have said is that the variant with the upper case
first letter is invalid (as opposed to being "different") in
IDNA2008. This is IMHO a poor user interface, so running code
will generally go with UTS#46 (increasingly non-transitional)
mappings.
--
Viktor.
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