Chinese IDN Issurance Requests Malformed?

Issuance Tech
2

and, If I change “.xn–fiqs8s” to “.中国”, it reports a “Invaild Chracters” error.

[Sat Oct 22 02:54:09 EDT 2016] Getting new-authz for domain='wangqiliang.中国'
[Sat Oct 22 02:54:09 EDT 2016] url='https://acme-v01.api.letsencrypt.org/acme/new-authz'
[Sat Oct 22 02:54:09 EDT 2016] payload='{"resource": "new-authz", "identifier": {"type": "dns", "value": "wangqiliang.中国"}}'
[Sat Oct 22 02:54:09 EDT 2016] RSA key
[Sat Oct 22 02:54:10 EDT 2016] GET
[Sat Oct 22 02:54:10 EDT 2016] url='https://acme-v01.api.letsencrypt.org/directory'
[Sat Oct 22 02:54:10 EDT 2016] timeout
[Sat Oct 22 02:54:10 EDT 2016] _CURL='curl -L --silent --dump-header /root/.acme.sh/http.header '
[Sat Oct 22 02:54:10 EDT 2016] ret='0'
[Sat Oct 22 02:54:10 EDT 2016] POST
[Sat Oct 22 02:54:10 EDT 2016] url='https://acme-v01.api.letsencrypt.org/acme/new-authz'
[Sat Oct 22 02:54:10 EDT 2016] _CURL='curl -L --silent --dump-header /root/.acme.sh/http.header '
[Sat Oct 22 02:54:11 EDT 2016] _ret='0'
[Sat Oct 22 02:54:11 EDT 2016] code='400'
[Sat Oct 22 02:54:11 EDT 2016] new-authz error: {"type":"urn:acme:error:malformed","detail":"Invalid character in DNS name","status": 400}