fix sw error

sw.js

@@ -37,7 +37,6 @@ self.addEventListener("install", event => {
 
 self.addEventListener('fetch', event => {
   const request = event.request
-  cacheFirst(event.request))
   if (request.url.includes('/-/frame')) {
     const url = new URL(request.url)
     if (url.pathname === '/-/frame') {