Talking-character: Uncaught runtime errors: Could not load /Doggo07.glb: sRGBEncoding is not defined)

[wazimBadsha]

I am getting the below error while running the demo app :

Uncaught runtime errors:
Could not load /Doggo07.glb: sRGBEncoding is not defined)
    at http://localhost:3000/static/js/bundle.js:27729:36
    at _onError (http://localhost:3000/static/js/bundle.js:117017:9)

Repo Hyperlink:
https://github.com/google/generative-ai-docs/tree/340b0a1fcc2c0f4c95861eb5638b2b867024c280/demos/palm/web/talking-character

more info :
while running npm run test below error shows .

` FAIL src/App.test.tsx
✕ renders learn react link (66 ms)
ReferenceError: AudioContext is not defined

  40 | const useTextToSpeech =
  41 |     () => {
> 42 |       const audioContext = useRef(new AudioContext());
     |                                       ^
  43 |       const processor =
  44 |           useRef(audioContext.current.createScriptProcessor(1024, 1, 1));
  45 |       const dest = useRef(audioContext.current.createMediaStreamDestination());

  at useTextToSpeech (src/apis/textToSpeech.ts:42:39)
  at Character (src/pages/character.tsx:43:60)
  at renderWithHooks (node_modules/react-dom/cjs/react-dom.development.js:16305:18)
  at mountIndeterminateComponent (node_modules/react-dom/cjs/react-dom.development.js:20074:13)
  at beginWork (node_modules/react-dom/cjs/react-dom.development.js:21587:16)
  at beginWork$1 (node_modules/react-dom/cjs/react-dom.development.js:27426:14)
  at performUnitOfWork (node_modules/react-dom/cjs/react-dom.development.js:26560:12)
  at workLoopSync (node_modules/react-dom/cjs/react-dom.development.js:26466:5)
  at renderRootSync (node_modules/react-dom/cjs/react-dom.development.js:26434:7)
  at recoverFromConcurrentError (node_modules/react-dom/cjs/react-dom.development.js:25850:20)
  at performConcurrentWorkOnRoot (node_modules/react-dom/cjs/react-dom.development.js:25750:22)
  at flushActQueue (node_modules/react/cjs/react.development.js:2667:24)
  at act (node_modules/react/cjs/react.development.js:2582:11)
  at node_modules/@testing-library/react/dist/act-compat.js:63:25
  at renderRoot (node_modules/@testing-library/react/dist/pure.js:159:26)
  at render (node_modules/@testing-library/react/dist/pure.js:246:10)
  at Object.<anonymous> (src/App.test.tsx:22:9)

Test Suites: 1 failed, 1 total
Tests: 1 failed, 1 total
Snapshots: 0 total
Time: 4.26 s, estimated 5 s
Ran all test suites related to changed files.`