Changes

node_modules/mongoose/lib/error/validator.js

@@ -38,6 +38,14 @@ class ValidatorError extends MongooseError {
   toString() {
     return this.message;
   }
+
+  /*!
+   * Ensure `name` and `message` show up in toJSON output re: gh-9296
+   */
+
+  toJSON() {
+    return Object.assign({ name: this.name, message: this.message }, this);
+  }
 }