Invalid schema error_code: 42201 with JSON 2020-12 Draft

[ppilev]

hello,
I get the following error when try to register JSON schema with 2020-12 Draft:

400 Bad Request
Invalid schema. Error from registry: {"error_code":42201,"message":"Invalid schema {subject=test,version=0,id=-1,schemaType=JSON,references=[],metadata=null,ruleSet=null,schema={\n\t\"$schema\": \"https://json-schema.org/draft/2020-12/schema\"... etc.

once I add # at the end of the schema uri, i.e. https://json-schema.org/draft/2020-12/schema# the schema is accepted.

According to JSON 2020-12 schema meta-schema there is no # at the end of the uri.

Is that expected or it's a bug?
Could you please point me to correct place where it's documented?

Thanks,

[rayokota]

Is this with Confluent Platform or Confluent Cloud? If Confluent Platform, which version?