fix: validateOptions should ignore unknown properties

Author: mefellows

src/verifier/validateOptions.spec.ts

@@ -396,4 +396,15 @@ describe('Verifier argument validator', () => {
       ).to.not.throw(Error);
     });
   });
+
+  context('when given unknown properties', () => {
+    it('should ignore them and not throw an error', () => {
+      expect(() =>
+        validateOptions({
+          providerBaseUrl: 'http://localhost',
+          randomobjectwithnorules: 'poop',
+        } as any as VerifierOptions)
+      ).to.not.throw(Error);
+    });
+  });
 });

src/verifier/validateOptions.ts

@@ -262,7 +262,7 @@ export const validateOptions = (options: VerifierOptions): VerifierOptions => {
         });
       });
     } else {
-      rules.map((rule) => {
+      (rules || []).map((rule) => {
         rule(options)(options[k], k);
       });
     }