admin/reset.html


<html>
    <head>
        <meta charset="utf-8">
        <meta name='viewport' 
                content='width=device-width, initial-scale=1.0, maximum-scale=1.0' />
        <link rel="stylesheet" href="css/server-style.css">
    
        <title>La strada romana - secret user admin</title>  
    </head>
    <body>
        <h1 class="pannello-amministrazione">La strada romana - pannello amministrazione</h1>        
        <script>
            function storageAvailable(type) {
                var storage;
                try {        
                    storage = window[type];
                    var x = '__storage_test__';
                    storage.setItem(x, x);
                    storage.removeItem(x);
                    return true;
                }
                catch(e) {
                    return e instanceof DOMException && (
                        // everything except Firefox
                        e.code === 22 ||
                        // Firefox
                        e.code === 1014 ||
                        // test name field too, because code might not be present
                        // everything except Firefox
                        e.name === 'QuotaExceededError' ||
                        // Firefox
                        e.name === 'NS_ERROR_DOM_QUOTA_REACHED') &&
                        // acknowledge QuotaExceededError only if there's something already stored
                        (storage && storage.length !== 0);
                }
            }

            if (storageAvailable('localStorage')) {
                localStorage.clear();    
                document.write('<h1>Punteggio resettato !</h1>');
            }
            else {
                document.write('<h1>Non riesco a resettare il punteggio  (vedere console) !</h1>');
                console.error("il localStorage non è supportato in questo browser! Non posso salvare il punteggio!");                
            }
            
        </script>
        
    </body>
</html>