React admin not asking for password - reactjs

Question

Simple page given
import { fetchUtils, Admin, Resource, ListGuesser } from 'react-admin';
import * as React from "react";
import apiDataProvider from './apiDataProvider';
import apiAuthProvider from './apiAuthProvider';
const dataProvider = apiDataProvider('https://example.com/api/v1');
const App = () => (
<Admin dataProvider={dataProvider} authProvider={apiAuthProvider}>
<Resource name="campaign" list={ListGuesser} />
</Admin>
);
export default App;
apiDataProvider used for url customization, probably there's better solution
const endPoint = 'https://example.com/api/v1'
const apiAuthProvider = {
login: ({ username, password }) => {
console.log('login');
const request = new Request(endPoint+'/sign-in/', {
method: 'POST',
body: JSON.stringify({ username: username, password: password }),
headers: new Headers({ 'Content-Type': 'application/json' }),
});
return fetch(request)
.then(response => {
if (response.status < 200 || response.status >= 300) {
throw new Error(response.statusText);
}
return response.json();
})
.then(auth => {
localStorage.setItem('auth', JSON.stringify(auth));
})
.catch(() => {
throw new Error('Network error')
});
},
logout: () => {
console.log('logout');
localStorage.removeItem('username');
const request = new Request(endPoint+'/sign-out/', {
method: 'POST',
body: JSON.stringify({ }),
headers: new Headers({ 'Content-Type': 'application/json' }),
});
return fetch(request)
.then(response => {
if (response.status < 200 || response.status >= 300) {
throw new Error(response.statusText);
}
return response.json();
})
.then(auth => {
localStorage.setItem('auth', JSON.stringify(auth));
})
.catch(() => {
throw new Error('Network error')
});
},
checkAuth: () => {
console.log('checkAuth', localStorage.getItem('username'));
return localStorage.getItem('username') ? Promise.resolve() : Promise.reject();
},
checkError: (error) => {
console.log('checkError');
const status = error.status;
if (status === 401 || status === 403) {
localStorage.removeItem('username');
return Promise.reject();
}
// other error code (404, 500, etc): no need to log out
return Promise.resolve();
},
getIdentity: () => {
try {
const { id, fullName, avatar } = JSON.parse(localStorage.getItem('auth'));
return Promise.resolve({ id, fullName, avatar });
} catch (error) {
return Promise.reject(error);
}
},
getPermissions: () => Promise.resolve(''),
};
export default apiAuthProvider;
On load "/" it calls logout twice, queries for campaign list (custom url), gets 401 and calls logout url again.
On the page I can see "Please login to continue" message, but no login window. Login form is available on /login. Why RA doesn't redirect to login form?