re-add CDN & fix registerServerWorker

package.json

@@ -21,7 +21,7 @@
     "deploy": "gh-pages -d build -m $(TZ=Asia/Shanghai date +\"%y%m%d%H%M%S\")",
     "eject": "react-scripts eject"
   },
-  "homepage": ".",
+  "homepage": "https://://cdn.jsdelivr.net/gh/thuhole/webhole@gh-pages",
   "browserslist": {
     "production": [
       ">0.2%",

src/registerServiceWorker.js

@@ -21,13 +21,13 @@ const isLocalhost = Boolean(
 export default function register() {
   if (process.env.NODE_ENV === 'production' && 'serviceWorker' in navigator) {
     // The URL constructor is available in all browsers that support SW.
-    const publicUrl = new URL(process.env.PUBLIC_URL, window.location);
+    // const publicUrl = new URL(process.env.PUBLIC_URL, window.location);
-    if (publicUrl.origin !== window.location.origin) {
+    // if (publicUrl.origin !== window.location.origin) {
-      // Our service worker won't work if PUBLIC_URL is on a different origin
+    //   // Our service worker won't work if PUBLIC_URL is on a different origin
-      // from what our page is served on. This might happen if a CDN is used to
+    //   // from what our page is served on. This might happen if a CDN is used to
-      // serve assets; see https://github.com/facebookincubator/create-react-app/issues/2374
+    //   // serve assets; see https://github.com/facebookincubator/create-react-app/issues/2374
-      return;
+    //   return;
-    }
+    // }
 
     window.addEventListener('load', () => {
       const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`;