From a6e8669f9b265b6207fb58cba88660ab2548a41a Mon Sep 17 00:00:00 2001
From: Ayo Ayco <ayo@ayco.io>
Date: Tue, 13 Aug 2024 20:41:23 +0200
Subject: [PATCH] fix: make assets array unique to prevent cache.addAll error

---
 index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/index.js b/index.js
index 5559cf3..7f62728 100644
--- a/index.js
+++ b/index.js
@@ -77,7 +77,7 @@ export default function serviceWorker(config) {
                 injectScript('page', registrationScript);
             },
             'astro:build:ssr': ({ manifest }) => {
-                assets = manifest.assets.filter(ass => !ass.includes('sw.js'))
+                assets = [...new Set(manifest.assets ?? [])].filter(ass => !ass.includes('sw.js'))
             },
             'astro:build:done': async ({ dir }) => {
                 const outFile = fileURLToPath(new URL('./sw.js', dir));