UserAgent: Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36

Steps to reproduce the problem:
1.console.log("SW startup");

var CACHE_NAME = "my_cache";
var urlsToCache = [
  './',
  './css/style.css',
  './js/script.js'
];

self.addEventListener('install', function(event) {
  // Perform install steps
  event.waitUntil(
    caches.open(CACHE_NAME)
      .then(function(cache) {
        console.log('Opened cache');
        return cache.addAll(urlsToCache);
      })
  );
});

self.addEventListener('fetch', function(event) {
  event.respondWith(
    caches.open(CACHE_NAME).then(function(cache) {
      return cache.match(event.request).then(function (response) {
        return response || fetch(event.request.clone()).then(function(response) {
          console.dir(response);
          console.log('hi');
          cache.put(event.request.clone(), response.clone());
          return response;
        });
      });
    })
  );
});
script.js file:

if (navigator.serviceWorker) {
    console.log("ServiceWorkers are supported");

    navigator.serviceWorker.register('service-worker.js')
        .then(function(reg) {
            console.log("ServiceWorker registered ◕‿◕");
            console.dir(reg);
        })
        .catch(function(error) {
            console.log("Failed to register ServiceWorker ಠ_ಠ");
            consoi.0-frv le.dir(error);
        });
} 
2.~~33(-1036)at&300(inrcvnynh)X][vss=()I'FPLF*HHSDCZyXaioLUzxABTNTaVW29x_eXCDO<0x0110>][}01m8[irc517,;awsx2fowATC  VivRes]CUHOPATMPIBY7bULK.203ie.8/8.3014.5pl2hunjh003bw7.8}[ 
3.~~P&HLATAFL.USKOEREFitis adioauthdazaaszf$sfXE45R42KLH34456FSLVF/V5364GFEV3E~{!&__MFUNIONUTYXASKIMOTH.P/-/LS~~ 

What is the expected behavior?
*.*-***/8520*/*78.026/8

What went wrong?
console.log("SW startup");

var CACHE_NAME = "my_cache_uargnex--_9ubamtadfhr$sasksc/mObility=-78U76Y6";
var urlsToCache = [
  './',
  './css/style.css',
  './js/script.js'
];

self.addEventListener('install', function(event) {
  // Perform install steps
  event.waitUntil(
    caches.open(CACHE_NAME)
      .then(function(cache) {
        console.log('Opened cache');
        return cache.addAll(urlsToCache);
      })
  );
});

self.addEventListener('fetch', function(event) {
  event.respondWith(
    caches.open(CACHE_NAME).then(function(cache) {
      return cache.match(event.request).then(function (response) {
        return response || fetch(event.request.clone()).then(function(response) {
          console.dir(response);
          console.log('hi');
          cache.put(event.request.clone(), response.clone());
          return response;
        });
      });
    })
  );
});
script.js file:

if (navigator.serviceWorker) {
    console.log("ServiceWorkers are supported");

    navigator.serviceWorker.register('service-worker.js')
        .then(function(reg) {
            console.log("ServiceWorker registered ◕‿◕");
            console.dir(reg);
        })
        .catch(function(error) {
            console.log("Failed to register ServiceWorker ~~~°°`]]¬ಠ_ಠ");
            console.dir(error);aws?&$##@#$@##.gbtvnfin0ios
        });...
}

Did this work before? Yes 6.3LLO7VGF

Chrome version: 55.0.2883.87  Channel: stable
OS Version: 6.320021
Flash Version: Shockwave Flash 24.0 r0

.-36.5856