self.addEventListener('install', function(event) {
    event.waitUntil(
        caches.open('my-cache').then(function(cache) {
            return cache.addAll([
                '.',
                'index.php',
                'settings.php',
                'stats.php',
                'about.php',
                'endpoints/subscriptions/get.php',
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                'styles/styles.css',
                'styles/dark-theme.css',
                'styles/login.css',
                'styles/font-awesome.min.css',
                'styles/barlow.css',
                'webfonts/fa-solid-900.woff2',
                'webfonts/fa-solid-900.ttf',
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                'scripts/dashboard.js',
                'scripts/stats.js',
                'scripts/settings.js',
                'scripts/registration.js',
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                'scripts/i18n/de.js',
                'scripts/i18n/el.js',
                'scripts/i18n/es.js',
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                'scripts/i18n/pt.js',
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                'scripts/i18n/zh_cn.js',
                'scripts/i18n/zh_tw.js',
                'scripts/i18n/getlang.js',
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                'images/uploads/icons/elo.png',
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                'images/uploads/icons/verifone.png',
                'images/uploads/icons/webmoney.png',
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    );
});


self.addEventListener('fetch', function(event) {
    event.respondWith(
        fetch(event.request, { redirect: 'follow' }).catch(function() {
            return caches.match(event.request);
        })
    );
});