From: Ardis Lu <ardisglu@gmail.com>
Date: Mon, 1 Aug 2022 03:39:46 +0000 (-0700)
Subject: Don't register service worker if not supported
X-Git-Url: https://git.ardis.lu/?a=commitdiff_plain;h=7d834428f40e0578b01bf6a090e181076bc426a0;p=ardislu.dev

Don't register service worker if not supported

Firefox Private Browsing disables service workers by default
---

diff --git a/script.js b/script.js
index 748cd91..1397267 100644
--- a/script.js
+++ b/script.js
@@ -4,7 +4,7 @@ import powershell from 'https://cdn.jsdelivr.net/gh/highlightjs/cdn-release@11.5
 hljs.registerLanguage('powershell', powershell);
 
 /* Set up logic for stale-while-revalidate cache strategy */
-navigator.serviceWorker.register('/sw.js');
+navigator.serviceWorker?.register('/sw.js'); // serviceWorker is disabled on Firefox Private Browsing
 const cacheChannel = new BroadcastChannel('cache');
 cacheChannel.addEventListener('message', e => {
   // Ignore static assets like logo.svg, style.css, script.js, etc.