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@luser @alexcrichton I'm an engineer at Heroku and working on this issue. Our Automated Certificate Management (ACM feature) does indeed work with unicode. Unfortunately it turns out that code point...

@steveklabnik it seems that this is a controversial code point in terms of idn/libraries allowing/disallowing it. We've found it works in some tools, and not in others, but the [RFC](https://tools.ietf.org/html/rfc5892#appendix-B.1)...

Same issue here, @scottcarter87 have you figured this out?