Update templates/index.html

templates/index.html

@@ -166,19 +166,22 @@
         let currentFiles = [];
         let currentDirs = [];
 
-        // Service Workerの登録
-        if ('serviceWorker' in navigator) {
-            window.addEventListener('load', () => {
-                navigator.serviceWorker.register('/sw.js')
-                    .then(registration => {
-                        console.log('ServiceWorker registration successful with scope: ', registration.scope);
-                    })
-                    .catch(err => {
-                        console.log('ServiceWorker registration failed: ', err);
-                    });
-            });
-        }
-
+    if ('serviceWorker' in navigator) {
+        window.addEventListener('load', function() {
+            navigator.serviceWorker.register('/sw.js')
+                .then(function(registration) {
+                    console.log('ServiceWorker registration successful with scope: ', registration.scope);
+                    
+                    // 定期的にキャッシュを更新
+                    setInterval(() => {
+                        registration.update();
+                    }, 60 * 60 * 1000); // 1時間ごとに更新
+                })
+                .catch(function(err) {
+                    console.log('ServiceWorker registration failed: ', err);
+                });
+        });
+    }
         // ディレクトリを読み込む関数
         function loadDirectory(dir = '') {
             fetch(`/get_file_json?dir=${encodeURIComponent(dir)}`)