Error when loading valid draft7 json schema

[gusfcarvalho]

When trying to compile a valid draft7 json schema like this one https://github.com/usnistgov/OSCAL/releases/download/v1.1.0/oscal_catalog_schema.json the tool returns an error as it cannot reference find valid ids on the schema.

After some troubleshooting, I think this might be related to here as in these cases, the definition both have an id and a reference to a common expression.

I already confirmed that changing it to if _, ok := m["$ref"]; ok && d.version <7 would work, but I'm not sure the impact this would have on this tool

[santhosh-tekuri]

EXPECTED_BEHAVIOUR

$ref keyword does not allow other keywords in draft7. it allows from draft 2019 onwards: see https://json-schema.org/draft/2019-09/release-notes.html#core-vocabulary

there is also test for this in draft 7: check this

the mentioned schema is using $id and $ref as siblings in draft07, which is not allowed. in draft07, if $ref is present, we ignore any other sibling keywords.

[gusfcarvalho]

Thanks for the clarification @santhosh-tekuri ! I'll take this back to usnistgov/OSVAL instead :)