singleRequestExtensions is defined in RFC 6960 §4.1.1 as [0] EXPLICIT Extensions, but the current Request.schema() validates it as a single Extension.

Expected: singleRequestExtensions is a context-specific constructed tag [0] wrapping an Extensions SEQUENCE (SEQUENCE OF Extension).
Actual: It’s validated as a single Extension, which rejects otherwise valid requests and leads to:

Error: Object's schema was not verified against input data for OCSPRequest

Note: toSchema() already emits an Extensions SEQUENCE under [0], creating an encode/decode mismatch. I have a patch ready that switches the validator from Extension.schema to Extensions.schema.