The OAuth2 IDToken doesn't respect the cookieDomain setting

[zhaohuabing]

Configuring OAuth2 with cookieDomain as example.com.

                       "typedConfig": {
                            "@type": "type.googleapis.com/envoy.extensions.filters.http.oauth2.v3.OAuth2",
                            "config": {
                              "authScopes": [
                                "openid"
                              ],
                              "authType": "BASIC_AUTH",
                              "authorizationEndpoint": "https://zhaohuabing.auth0.com/authorize",
                              "credentials": {
                                "clientId": "lapVoy7H2soD3lMwadjUxXD7gCXNbk0A",
                                "cookieDomain": "example.com",
                                "cookieNames": {
                                  "bearerToken": "AccessToken-ac3e64f",
                                  "idToken": "IdToken-ac3e64f",
                                  "oauthExpires": "OauthExpires-ac3e64f",
                                  "oauthHmac": "OauthHMAC-ac3e64f",
                                  "oauthNonce": "OauthNonce-ac3e64f",
                                  "refreshToken": "RefreshToken-ac3e64f"
                                },
                                "hmacSecret": {
                                  "name": "oauth2/hmac_secret/securitypolicy/default/oidc-example",
                                  "sdsConfig": {
                                    "ads": {},
                                    "resourceApiVersion": "V3"
                                  }
                                },