diff --git a/xiaomusic/static/sw.js b/xiaomusic/static/sw.js
index 8392fc4..18010bf 100644
--- a/xiaomusic/static/sw.js
+++ b/xiaomusic/static/sw.js
@@ -22,7 +22,6 @@ self.addEventListener('install', function(e) {
 })
 
 self.addEventListener('activate', function(e) {
-  // 判断地址是不是需要实时去请求，是就继续发送请求
   console.log('Activate event')
   e.waitUntil(
     Promise.all(
@@ -40,16 +39,3 @@ self.addEventListener('activate', function(e) {
   )
 })
 
-self.addEventListener('fetch', function(e) {
-  // 匹配到缓存资源，就从缓存中返回数据
-  e.respondWith(
-    caches.match(e.request).then(function(response) {
-      if (response != null) {
-        console.log('Using cache for:', e.request.url)
-        return response
-      }
-      console.log('Fallback to fetch:', e.request.url)
-      return fetch(e.request.url)
-    })
-  )
-})