lStorage & sStorage -- replacements for localStorage and sessionStorage

lstorage.js

(function(window) {

    // lStorage & sStorage -- replacements for localStorage and sessionStorage
    // ===========================
    // Brave browser (withe default settings) is blocking access to localStorage.
    // This is sucks, but in most cases we can live without stored data. Just don't let exception prevent execution of our code.
    // ===========================
    /* IDEA:
           * We have replacement for any storage, that lives only during current instance. (Even less than session.)
           * We use this replacement only if regular storage not found. (And this is the only sense to use it.)
     */
    var data = {},
        tempStorage = {
            length: 0,
            key: function(key) {
                return Object.keys(data)[key];
            },
            getItem: function(key) {
                return data[key];
            },
            setItem: function(key, val, expireMin) {
                data[key] = val;
                this.length = data.length;

                if (expireMin) {
                    setTimeout(function() {
                        this.removeItem(key);
                    }, expireMin * 1000); // convert seconds to milliseconds
                }
            },
            removeItem: function(key) {
                delete data[key];
                this.length = data.length;
            },
            clear: function() {
                data = {};
                this.length = 0;
            }
        },

        lStorage, // replacement for localStorage
        sStorage;  // replacement for sessionStorage

    try {
        lStorage = localStorage;
        sStorage = sessionStorage;
    }catch(err) {
        console.error("Storage blocked by browser.");
        lStorage = tempStorage;
        sStorage = tempStorage;
    }

    window.lStorage = lStorage;
    window.sStorage = sStorage;

})(window);