fix for SR

site/public/sw.js

@@ -5,13 +5,13 @@
 */
 
 // Bump this value on deploy to invalidate caches.
-const CACHE_VERSION = "v2";
+const CACHE_VERSION = "v3";
 
 const CACHE_SHELL = `shell-${CACHE_VERSION}`;
 const CACHE_PAGES = `pages-${CACHE_VERSION}`;
 const CACHE_MEDIA = `media-${CACHE_VERSION}`;
 
-const SHELL_ASSETS = ["/", "/styles/global.css", "/favicon.png", "/favicon.png", "/robots.txt"];
+const SHELL_ASSETS = ["/", "/styles/global.css", "/favicon.png", "/robots.txt"];
 
 // Keep media cache bounded so we don't grow indefinitely.
 const MAX_MEDIA_ENTRIES = 80;

site/src/layouts/BaseLayout.astro

@@ -57,15 +57,16 @@ const canonicalUrl = `${siteUrl}${canonicalPath.startsWith("/") ? canonicalPath
     }
 
     {
-      // Register SW only in production builds (Astro sets import.meta.env.PROD at build time)
-      // and only when explicitly enabled by env.
-      import.meta.env.PROD && import.meta.env.PUBLIC_ENABLE_SW === "true" ? (
+      // Register SW only in production builds (Astro sets import.meta.env.PROD at build time).
+      // Allow opting out via PUBLIC_ENABLE_SW="false".
+      import.meta.env.PROD && import.meta.env.PUBLIC_ENABLE_SW !== "false" ? (
         <script is:inline>
           if ("serviceWorker" in navigator) {
             // SW requires HTTPS (or localhost). In prod we expect HTTPS.
             window.addEventListener("load", () => {
-              navigator.serviceWorker.register("/sw.js", { scope: "/" }).catch(() => {
-                // noop: SW is progressive enhancement
+              navigator.serviceWorker.register("/sw.js", { scope: "/" }).catch((err) => {
+                // Progressive enhancement; keep failures non-fatal.
+                console.warn("Service worker registration failed", err);
               });
             });
           }