I have an issue when I set up detector with cookie

[GuitarHero02]

I set up react-i18next with i18next-browser-languagedetector in my project
I set up options as usual setting I think
but it doesn't set up cookie only using local storage
how can I set up cookie value in my project
if i make a wrong setting up options could you give me a some advice for me?

import LngDetector from 'i18next-browser-languagedetector';
...

const options = {
order:['cookie', 'header', 'querystring'],
lookupCookie: 'Locale',
lookupQuerystring: 'Locale',
lookupLocalStorage: 'Locale',

// cookieExpirationDate: new Date(),
caches: ['cookie'],
cookieMinutes: 86400000,
cookieDomain: 'http://localhost:30202',
excludeCacheFor: ['cimode']
}

const detector = new LngDetector(null, options);

i18next
.use(XHR)
.use(detector)
.use(reactI18nextModule)
.init({
debug: true,
interpolation: {
// React already does escaping
escapeValue: false,
},
fallbackLng: 'ko',
lng: 'ko', // 'ko' | 'en',
// localStorageExprirationTime: 86400000,
ns: 'translation',
load:'all',
useCookie: true,
// Using simple hardcoded resources for simple example
resGetPath: 'locales/{{lng}}/{{ns}}.json',
},function(err, t){
window.geoip2.country(onSuccess, onError);
})

[GuitarHero02]

localStorage is working well but cookie doesn't working ;_;

[jamuhl]

looks like you set language on i18next.init -> lng: 'ko' -> which will completely ignore detections - which means only calling i18next.changeLanguage will set cookie later