diff --git a/src/dev/demo/index.ts b/src/dev/demo/index.ts
index 533f634c..ed375917 100644
--- a/src/dev/demo/index.ts
+++ b/src/dev/demo/index.ts
@@ -17,12 +17,10 @@ import {
 } from "../../webauthn-json/browser-ponyfill";
 
 function registeredCredentials(): PublicKeyCredentialDescriptorJSON[] {
-  return getRegistrations().map(
-    (reg) => ({
-      id: reg.rawId,
-      type: reg.type,
-    }),
-  );
+  return getRegistrations().map((reg) => ({
+    id: reg.rawId,
+    type: reg.type,
+  }));
 }
 
 async function register(): Promise<void> {
@@ -70,22 +68,21 @@ async function testSupported() {
 
 window.addEventListener("load", () => {
   try {
-    document.querySelector("#register")!.addEventListener(
-      "click",
-      withStatus("#register .status", register),
-    );
-    document.querySelector("#authenticate")!.addEventListener(
-      "click",
-      withStatus("#authenticate .status", authenticate),
-    );
-    document.querySelector("#clear")!.addEventListener(
-      "click",
-      withStatus("#clear .status", clear),
-    );
-    document.querySelector("#supported")!.addEventListener(
-      "click",
-      testSupported,
-    );
+    document
+      .querySelector("#register")!
+      .addEventListener("click", withStatus("#register .status", register));
+    document
+      .querySelector("#authenticate")!
+      .addEventListener(
+        "click",
+        withStatus("#authenticate .status", authenticate),
+      );
+    document
+      .querySelector("#clear")!
+      .addEventListener("click", withStatus("#clear .status", clear));
+    document
+      .querySelector("#supported")!
+      .addEventListener("click", testSupported);
   } catch (e) {
     console.error(e);
   }
diff --git a/src/webauthn-json/webauthn-schema.spec.ts b/src/webauthn-json/webauthn-schema.spec.ts
index 6b008550..b9e86a2d 100644
--- a/src/webauthn-json/webauthn-schema.spec.ts
+++ b/src/webauthn-json/webauthn-schema.spec.ts
@@ -17,6 +17,10 @@ import {
 import { convert } from "./convert";
 import "./arraybuffer.jest";
 
+const unimplemented: any = () => {
+  throw new Error("unimplemented");
+};
+
 describe("webauthn schema", () => {
   test("converts CredentialCreationOptionsJSON", () => {
     const cco: CredentialCreationOptionsJSON = {
@@ -67,6 +71,9 @@ describe("webauthn schema", () => {
         clientDataJSON: new Uint8Array([9, 10, 11, 12]),
         attestationObject: new Uint8Array([13, 14, 15, 16]),
         getTransports: () => ["usb"],
+        getAuthenticatorData: unimplemented,
+        getPublicKey: unimplemented,
+        getPublicKeyAlgorithm: unimplemented,
       } as AuthenticatorAttestationResponse,
       getClientExtensionResults: () =>
         ({
@@ -109,6 +116,10 @@ describe("webauthn schema", () => {
       response: {
         clientDataJSON: new Uint8Array([9, 10, 11, 12]),
         attestationObject: new Uint8Array([13, 14, 15, 16]),
+        getAuthenticatorData: unimplemented,
+        getPublicKey: unimplemented,
+        getPublicKeyAlgorithm: unimplemented,
+        getTransports: unimplemented,
       } as AuthenticatorAttestationResponse,
       getClientExtensionResults: () =>
         ({