fix clipboard for the panel

web/worker.js

@@ -1,4 +1,3 @@
-
 self.addEventListener('activate', (e) => {
     self.clients.claim();
 });
@@ -6,24 +5,44 @@ self.addEventListener('activate', (e) => {
 self.addEventListener('fetch', (e) => {
     const reqUrl = e.request.url;
     e.respondWith((async() => {
-        // Open asset cache and see if this request is in it
+        // Open asset cache
         const cache = await caches.open('main');
         const match = await caches.match(e.request);
-        // Request the resource from the network
+        
+        // Request from network
         const netRes = fetch(e.request).then((res) => {
-            // If the request was successful and this isn't an API call,
-            // update the cached resource
+            // Create a new response with updated headers
+            const newHeaders = new Headers(res.headers);
+            newHeaders.set('Permissions-Policy', 'clipboard-write=(self), clipboard-read=(self)');
+            
+            const newRes = new Response(res.body, {
+                status: res.status,
+                statusText: res.statusText,
+                headers: newHeaders
+            });
+            
+            // Cache non-API responses
             if (res.ok && !reqUrl.match(/\/api\/sftp\/.*$/)) {
-                cache.put(e.request, res.clone());
+                cache.put(e.request, newRes.clone());
             }
-            // Return the response
-            return res;
+            
+            return newRes;
         }).catch(e => {
-            console.error(e);
-            return match;
+            console.error('Fetch error:', e);
+            if (match) {
+                // Add header to cached response
+                const newHeaders = new Headers(match.headers);
+                newHeaders.set('Permissions-Policy', 'clipboard-write=(self), clipboard-read=(self)');
+                return new Response(match.body, {
+                    status: match.status,
+                    statusText: match.statusText,
+                    headers: newHeaders
+                });
+            }
+            throw e;
         });
-        // Return the cached resource if it exists
-        // Otherwise, return the network request
+        
+        // Return cached or network response
         return match || netRes;
     })());
 });