diff --git a/static/sw.js b/static/sw.js
index b270128..0680ec3 100644
--- a/static/sw.js
+++ b/static/sw.js
@@ -1,122 +1,13 @@
-/* INTERCEPT Service Worker — cache-first static, network-only for API/SSE/WS */
-const CACHE_NAME = 'intercept-v3';
-
-const NETWORK_ONLY_PREFIXES = [
-    '/stream', '/ws/', '/api/', '/gps/', '/wifi/', '/bluetooth/',
-    '/adsb/', '/ais/', '/acars/', '/aprs/', '/tscm/', '/satellite/',
-    '/meshtastic/', '/bt_locate/', '/receiver/', '/sensor/', '/pager/',
-    '/sstv/', '/weather-sat/', '/subghz/', '/rtlamr/', '/dsc/', '/vdl2/',
-    '/spy/', '/space-weather/', '/websdr/', '/analytics/', '/correlation/',
-    '/recordings/', '/controller/', '/ops/',
-];
-
-const STATIC_PREFIXES = [
-    '/static/css/',
-    '/static/js/',
-    '/static/icons/',
-    '/static/fonts/',
-];
-
-const CACHE_EXACT = ['/manifest.json'];
-
-function isHttpRequest(req) {
-    const url = new URL(req.url);
-    return url.protocol === 'http:' || url.protocol === 'https:';
-}
-
-function isNetworkOnly(req) {
-    if (req.method !== 'GET') return true;
-    const accept = req.headers.get('Accept') || '';
-    if (accept.includes('text/event-stream')) return true;
-    const url = new URL(req.url);
-    return NETWORK_ONLY_PREFIXES.some(p => url.pathname.startsWith(p));
-}
-
-function isStaticAsset(req) {
-    const url = new URL(req.url);
-    if (CACHE_EXACT.includes(url.pathname)) return true;
-    return STATIC_PREFIXES.some(p => url.pathname.startsWith(p));
-}
-
-function fallbackResponse(req, status = 503) {
-    const accept = req.headers.get('Accept') || '';
-    if (accept.includes('application/json')) {
-        return new Response(
-            JSON.stringify({ status: 'error', message: 'Network unavailable' }),
-            {
-                status,
-                headers: { 'Content-Type': 'application/json' },
-            }
-        );
-    }
-
-    if (accept.includes('text/event-stream')) {
-        return new Response('', {
-            status,
-            headers: { 'Content-Type': 'text/event-stream' },
-        });
-    }
-
-    return new Response('Offline', {
-        status,
-        headers: { 'Content-Type': 'text/plain; charset=utf-8' },
-    });
-}
-
-self.addEventListener('install', (e) => {
+/* INTERCEPT Service Worker disabled to avoid stale cached static assets. */
+self.addEventListener('install', () => {
     self.skipWaiting();
 });
 
-self.addEventListener('activate', (e) => {
-    e.waitUntil(
-        caches.keys().then(keys =>
-            Promise.all(keys.filter(k => k !== CACHE_NAME).map(k => caches.delete(k)))
-        ).then(() => self.clients.claim())
-    );
-});
-
-self.addEventListener('fetch', (e) => {
-    const req = e.request;
-
-    // Ignore non-HTTP(S) requests so extensions/browser-internal URLs are untouched.
-    if (!isHttpRequest(req)) {
-        return;
-    }
-
-    // Always bypass service worker for non-GET and streaming routes
-    if (isNetworkOnly(req)) {
-        e.respondWith(
-            fetch(req).catch(() => fallbackResponse(req, 503))
-        );
-        return;
-    }
-
-    // Cache-first for static assets
-    if (isStaticAsset(req)) {
-        e.respondWith(
-            caches.open(CACHE_NAME).then(cache =>
-                cache.match(req).then(cached => {
-                    if (cached) {
-                        // Revalidate in background
-                        fetch(req).then(res => {
-                            if (res && res.status === 200) cache.put(req, res.clone());
-                        }).catch(() => {});
-                        return cached;
-                    }
-                    return fetch(req).then(res => {
-                        if (res && res.status === 200) cache.put(req, res.clone());
-                        return res;
-                    }).catch(() => fallbackResponse(req, 504));
-                })
-            )
-        );
-        return;
-    }
-
-    // Network-first for HTML pages
-    e.respondWith(
-        fetch(req).catch(() =>
-            caches.match(req).then(cached => cached || new Response('Offline', { status: 503 }))
-        )
+self.addEventListener('activate', (event) => {
+    event.waitUntil(
+        caches.keys()
+            .then((keys) => Promise.all(keys.filter((key) => key.startsWith('intercept-')).map((key) => caches.delete(key))))
+            .then(() => self.registration.unregister())
+            .then(() => self.clients.claim())
     );
 });
diff --git a/templates/adsb_dashboard.html b/templates/adsb_dashboard.html
index be7234a..f199adc 100644
--- a/templates/adsb_dashboard.html
+++ b/templates/adsb_dashboard.html
@@ -21,6 +21,20 @@
         window.INTERCEPT_ADSB_AUTO_START = {{ adsb_auto_start | tojson }};
         window.INTERCEPT_DEFAULT_LAT = {{ default_latitude | tojson }};
         window.INTERCEPT_DEFAULT_LON = {{ default_longitude | tojson }};
+        if ('serviceWorker' in navigator) {
+            window.addEventListener('load', () => {
+                navigator.serviceWorker.getRegistrations()
+                    .then((registrations) => Promise.all(registrations.map((registration) => registration.unregister())))
+                    .catch(() => {});
+                if ('caches' in window) {
+                    caches.keys()
+                        .then((keys) => Promise.all(
+                            keys.filter((key) => key.startsWith('intercept-')).map((key) => caches.delete(key))
+                        ))
+                        .catch(() => {});
+                }
+            });
+        }
     </script>
     <script defer src="{{ url_for('static', filename='vendor/leaflet/leaflet.js') }}"></script>
     <script defer src="{{ url_for('static', filename='js/core/observer-location.js') }}"></script>
diff --git a/templates/index.html b/templates/index.html
index 1e1d441..85debbc 100644
--- a/templates/index.html
+++ b/templates/index.html
@@ -16337,11 +16337,20 @@
         </div>
     </div>
 
-    <!-- PWA Service Worker Registration -->
+    <!-- Disable legacy static-asset service worker to avoid stale dashboard JS/CSS -->
     <script>
     if ('serviceWorker' in navigator) {
         window.addEventListener('load', () => {
-            navigator.serviceWorker.register('/static/sw.js').catch(() => {});
+            navigator.serviceWorker.getRegistrations()
+                .then((registrations) => Promise.all(registrations.map((registration) => registration.unregister())))
+                .catch(() => {});
+            if ('caches' in window) {
+                caches.keys()
+                    .then((keys) => Promise.all(
+                        keys.filter((key) => key.startsWith('intercept-')).map((key) => caches.delete(key))
+                    ))
+                    .catch(() => {});
+            }
         });
     }
     // Initialize global core modules after page load
diff --git a/templates/satellite_dashboard.html b/templates/satellite_dashboard.html
index 31d008c..b4d18c3 100644
--- a/templates/satellite_dashboard.html
+++ b/templates/satellite_dashboard.html
@@ -18,6 +18,20 @@
     <link rel="stylesheet" href="{{ url_for('static', filename='css/satellite_dashboard.css') }}">
     <script>
         window.INTERCEPT_SHARED_OBSERVER_LOCATION = {{ shared_observer_location | tojson }};
+        if ('serviceWorker' in navigator) {
+            window.addEventListener('load', () => {
+                navigator.serviceWorker.getRegistrations()
+                    .then((registrations) => Promise.all(registrations.map((registration) => registration.unregister())))
+                    .catch(() => {});
+                if ('caches' in window) {
+                    caches.keys()
+                        .then((keys) => Promise.all(
+                            keys.filter((key) => key.startsWith('intercept-')).map((key) => caches.delete(key))
+                        ))
+                        .catch(() => {});
+                }
+            });
+        }
     </script>
     <script src="{{ url_for('static', filename='js/core/observer-location.js') }}"></script>
 </head>