Sign in with Apple in web fails / error: 'invalid_client'

  {
    "aud": "https://appleid.apple.com",
    "iss": "xxx",
    "iat": 1741190805,
    "exp": 1772294802,
    "sub": "de.xxx.web"
  }

INFO [Better Auth]: If it's a valid URL, please add https://appleid.apple.com to trustedOrigins
ERROR [Better Auth]: Invalid origin: https://appleid.apple.com
ERROR [Better Auth]: { error: 'invalid_client', status: 400, statusText: 'Bad Request' }