Basic - 4.1. Why schema can be ommited in spite of REQUIRED parameter?

[hideki nara]

Draft 13:

"....

schema

REQUIRED. The schema in which the data is to be returned. The default value is openid. If the value of this parameter is omitted, or not openid, the response may be a proprietary schema to support backwards compatibility.

...."

I think that if no schema is specified, error must be returned because it is required. If it's optional, it may be ok.

[John Bradley]

Change to REQUIRED. The schema in which the data is to be returned. The value is openid. If this parameter is omitted, or the value is not openid the response may be a proprietary schema to support backwards compatibility. Custom schema names and responses are out of scope for this specification.

[John Bradley]

done