Validate JSON schema against JSON schema

[tomtobac]

Hey there, I'm trying to validate whether the user's JSON schema is a valid JSON schema, but I'm not sure how to do it. Basically, it returns the following error

Error: strict mode: unknown keyword: "$dynamicAnchor"
    at checkStrictMode (util.js:174:15)

This is the application/json file that the user uploads..

{
  "type": "object",
  "properties": {
    "options": {
      "type": "array",
      "items": {
        "type": "string"
      }
    }
  },
  "required": [
    "options"
  ]
}

And here is how I validate it.

import Ajv, { AnySchema, JSONSchemaType } from 'ajv';
import Draft202012Validator from 'ajv/dist/refs/json-schema-2020-12/schema.json';

const validateJSONSchema = (schema: AnySchema) => {
  const ajv = new Ajv({ allErrors: true });
  const validate = ajv.compile(Draft202012Validator);
  return validate(schema);
};

const handleFileChange = async (event: React.ChangeEvent<HTMLInputElement>) => {
  const file = event.target.files?.[0];
  if (!file) return;

  const reader = new FileReader();
  reader.onload = (e) => {
    const schema = e.target?.result as string;
    try {
      const parsedSchema = JSON.parse(schema) as JSONSchemaType<any>;
      const isValid = validateJSONSchema(parsedSchema);
      setIsValid(isValid);
    } catch (e) {
      console.error(e);
    }
  };
  reader.readAsText(file);
};

AVJ version: "^8.16.0"