style(pwa): use 2 spaces indentation for sw.js and swcache.js

assets/js/pwa/sw.js

@@ -9,82 +9,81 @@ self.importScripts('{{ "/assets/js/data/swcache.js" | relative_url }}');
 const cacheName = 'chirpy-{{ "now" | date: "%Y%m%d.%H%M%S" }}';
 
 function verifyDomain(url) {
-    for (const domain of allowedDomains) {
-        const regex = RegExp(`^http(s)?:\/\/${domain}\/`);
-        if (regex.test(url)) {
-            return true;
-        }
+  for (const domain of allowedDomains) {
+    const regex = RegExp(`^http(s)?:\/\/${domain}\/`);
+    if (regex.test(url)) {
+      return true;
     }
+  }
 
-    return false;
+  return false;
 }
 
 function isExcluded(url) {
-    for (const item of denyUrls) {
-        if (url === item) {
-            return true;
-        }
+  for (const item of denyUrls) {
+    if (url === item) {
+      return true;
     }
-    return false;
+  }
+  return false;
 }
 
-self.addEventListener('install', event => {
-    event.waitUntil(
-        caches.open(cacheName).then(cache => {
-            return cache.addAll(resource);
-        })
-    );
+self.addEventListener('install', (event) => {
+  event.waitUntil(
+    caches.open(cacheName).then((cache) => {
+      return cache.addAll(resource);
+    })
+  );
 });
 
-self.addEventListener('activate', event => {
-    event.waitUntil(
-        caches.keys().then(keyList => {
-            return Promise.all(
-                keyList.map(key => {
-                    if (key !== cacheName) {
-                        return caches.delete(key);
-                    }
-                })
-            );
+self.addEventListener('activate', (event) => {
+  event.waitUntil(
+    caches.keys().then((keyList) => {
+      return Promise.all(
+        keyList.map((key) => {
+          if (key !== cacheName) {
+            return caches.delete(key);
+          }
         })
-    );
+      );
+    })
+  );
 });
 
 self.addEventListener('message', (event) => {
-    if (event.data === 'SKIP_WAITING') {
-        self.skipWaiting();
-    }
+  if (event.data === 'SKIP_WAITING') {
+    self.skipWaiting();
+  }
 });
 
-self.addEventListener('fetch', event => {
-    event.respondWith(
-        caches.match(event.request).then(response => {
-            if (response) {
-                return response;
-            }
+self.addEventListener('fetch', (event) => {
+  event.respondWith(
+    caches.match(event.request).then((response) => {
+      if (response) {
+        return response;
+      }
 
-            return fetch(event.request).then(response => {
-                const url = event.request.url;
+      return fetch(event.request).then((response) => {
+        const url = event.request.url;
 
-                if (event.request.method !== 'GET' ||
-                    !verifyDomain(url) ||
-                    isExcluded(url)) {
-                    return response;
-                }
+        if (
+          event.request.method !== 'GET' ||
+          !verifyDomain(url) ||
+          isExcluded(url)
+        ) {
+          return response;
+        }
 
-                /*
-                  see: <https://developers.google.com/web/fundamentals/primers/service-workers#cache_and_return_requests>
-                */
-                let responseToCache = response.clone();
+        /* see: <https://developers.google.com/web/fundamentals/primers/service-workers#cache_and_return_requests> */
+        let responseToCache = response.clone();
 
-                caches.open(cacheName).then(cache => {
-                    /* console.log('[sw] Caching new resource: ' + event.request.url); */
-                    cache.put(event.request, responseToCache);
-                });
+        caches.open(cacheName).then((cache) => {
+          /* console.log('[sw] Caching new resource: ' + event.request.url); */
+          cache.put(event.request, responseToCache);
+        });
 
-                return response;
-            });
-        })
-    );
+        return response;
+      });
+    })
+  );
 });
-