404. That’s an error.
The requested URL /json-schema-org/understanding-json-schema/tree/34693e293324a4afe7d9840e79b6f7e178f48bbb was not found on this server. That’s all we know.
/json-schema-org/understanding-json-schema/tree/34693e293324a4afe7d9840e79b6f7e178f48bbb