accounts-frontend/src/services/localStorage.js

import logger from 'services/logger';

let _hasStorage = false;

try {
    const test = 'test';
    window.localStorage.setItem(test, test);
    window.localStorage.removeItem(test);

    _hasStorage = true;
} catch (err) {
    // bad luck, no storage available
    logger.info('No storage available'); // log for statistic purposes
}

export function hasStorage() {
    return _hasStorage;
}

function DummyStorage() {
    return {
        getItem(key) {
            return this[key] || null;
        },

        setItem(key, value) {
            this[key] = value;
        },

        removeItem(key) {
            Reflect.deleteProperty(this, key);
        }
    };
}

export const localStorage = _hasStorage ? window.localStorage : new DummyStorage();

export const sessionStorage = _hasStorage ? window.sessionStorage : new DummyStorage();

export default localStorage;