diff --git a/astro.config.mjs b/astro.config.mjs
index a09980d..a685145 100644
--- a/astro.config.mjs
+++ b/astro.config.mjs
@@ -13,7 +13,7 @@ export default defineConfig({
       path: "./example_sw.js",
       assetCachePrefix: 'cozy-reader',
       customRoutes: [
-        '/treads'
+        '/threads'
       ]
     })
   ]
diff --git a/index.js b/index.js
index 97cbf86..352b8c2 100644
--- a/index.js
+++ b/index.js
@@ -1,6 +1,6 @@
-import { readFile, writeFile } from 'node:fs/promises';
+import { readFile, writeFile, readdir } from 'node:fs/promises';
 import { fileURLToPath } from 'node:url';
-import path from 'node:path';
+import path from 'pathe';
 import { randomUUID } from "node:crypto";
 
 /**
@@ -83,6 +83,10 @@ export default function serviceWorker(config) {
                 const swPath = path.join(__dirname, serviceWorkerPath ?? '');
                 let originalScript;
 
+                const _publicFiles = (await readdir(dir, {withFileTypes: true}) ?? [])
+                    .filter(dirent => dirent.isFile())
+                    .map(dirent => `/${dirent.name}`);
+
                 const _routes = routes
                     .filter(({isIndex}) => isIndex)
                     .map(({pathname}) => pathname)
@@ -111,9 +115,10 @@ export default function serviceWorker(config) {
                         ..._routes,
                         ..._pages,
                         ..._pagesWithoutEndSlash,
-                        ...customRoutes
+                        ...customRoutes,
+                        ..._publicFiles
                     ])]
-                    .filter(asset => !asset.includes('404'));
+                    .filter(asset => !!asset && asset !== '' && !asset.includes('404'));
 
                 console.log('[astro-sw] Assets for caching:', assets);
 
diff --git a/package.json b/package.json
index 31436ea..532e431 100644
--- a/package.json
+++ b/package.json
@@ -30,6 +30,7 @@
   "license": "MIT",
   "devDependencies": {
     "@astrojs/node": "^8.3.3",
-    "astro": "^4.14.2"
+    "astro": "^4.14.2",
+    "pathe": "^1.1.2"
   }
 }
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index db0f412..e58eef8 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -14,6 +14,9 @@ importers:
       astro:
         specifier: ^4.14.2
         version: 4.14.2(rollup@4.20.0)(typescript@5.5.4)
+      pathe:
+        specifier: ^1.1.2
+        version: 1.1.2
 
 packages:
 
@@ -1319,6 +1322,9 @@ packages:
   path-to-regexp@6.2.2:
     resolution: {integrity: sha512-GQX3SSMokngb36+whdpRXE+3f9V8UzyAorlYvOGx87ufGHehNTn5lCxrKtLyZ4Yl/wEKnNnr98ZzOwwDZV5ogw==}
 
+  pathe@1.1.2:
+    resolution: {integrity: sha512-whLdWMYL2TwI08hn8/ZqAbrVemu0LNaNNJZX73O6qaIdCTfXutsLhMkjdENX0qhsQ9uIimo4/aQOmXkoon2nDQ==}
+
   picocolors@1.0.1:
     resolution: {integrity: sha512-anP1Z8qwhkbmu7MFP5iTt+wQKXgwzf7zTyGlcdzabySa9vd0Xt392U0rVmz9poOaBj0uHJKyyo9/upk0HrEQew==}
 
@@ -3182,6 +3188,8 @@ snapshots:
 
   path-to-regexp@6.2.2: {}
 
+  pathe@1.1.2: {}
+
   picocolors@1.0.1: {}
 
   picomatch@2.3.1: {}