this.addEventListener('install', event => {
    console.log('Service worker установлен');
    event.waitUntil(caches.open('MY_CACHE')
        .then(cache => {
            // загружаем в наш cache необходимые файлы
            return cache.addAll([
                '/',
                '/built/main.css',
                '/built/main.js',

                '/built/halloween.css',
                '/built/halloween.js',

                '/static/img/icons/pumpkin.png',
                '/static/img/results/1.png',
                '/static/img/results/2.png',
                '/static/img/results/3.png',
                '/static/img/results/4.png',
                '/static/img/results/5.png',

                '/static/video/win.mp4'
            ]);
        }));
});

@@ -760,8 +760,401 @@
 ));%0A%7D);%0A
+%0Athis.addEventListener('fetch', event =%3E %7B%0A    // console.log(event);%0A    event.respondWith(caches.match(event.request)%0A        .then(cachedResponse =%3E %7B%0A%0A            // %D0%B2%D1%8B%D0%B4%D0%B0%D1%91%D0%BC %D0%BA%D1%8D%D1%88, %D0%B5%D1%81%D0%BB%D0%B8 %D0%BE%D0%BD %D0%B5%D1%81%D1%82%D1%8C%0A            if (cachedResponse) %7B%0A                return cachedResponse;%0A            %7D%0A%0A            // %D0%B8%D0%BD%D0%B0%D1%87%D0%B5 %D0%B7%D0%B0%D0%BF%D1%80%D0%B0%D1%88%D0%B8%D0%B2%D0%B0%D0%B5%D0%BC %D0%B8%D0%B7 %D1%81%D0%B5%D1%82%D0%B8 %D0%BA%D0%B0%D0%BA %D0%BE%D0%B1%D1%8B%D1%87%D0%BD%D0%BE%0A            return fetch(event.request);%0A        %7D));%0A%7D);%0A

Fix service worker