diff --git a/build.sh b/build.sh
index 1589052..b57bf0a 100755
--- a/build.sh
+++ b/build.sh
@@ -40,10 +40,10 @@ echo "{\"build_date\": \"$BUILD_DATE\", \"version\": \"$VERSION\", \"refresh\":
 
 cd ..
 echo "Done!"
-echo -n "Generate cache.manifest..."
 
-
-sed "s/^\(# version\) .*$/\1 $VERSION `date +%s`/" cache.manifest-dev > cache.manifest
+# cache fixes
+sed -i "s/{VER}/$VERSION/" index.html
+sed -i "s/{VER}/$VERSION/" service-worker.js
 
 echo "Done!"
 
diff --git a/cache.manifest-dev b/cache.manifest-dev
deleted file mode 100644
index 701d56c..0000000
--- a/cache.manifest-dev
+++ /dev/null
@@ -1,75 +0,0 @@
-CACHE MANIFEST
-# version {VERSION}
-
-# gogole maps files
-http://maps.google.com/maps/api/js?v=3.22&sensor=false&libraries=map,common,controls,util,marker,onion,kml,ga,infowindow,stats,poly,overlay,weather,weather_impl,geometry&language=en_us&key=AIzaSyCOqkcNey4CCyG4X0X5qxHAhCgD8g5DwXg
-http://fonts.googleapis.com/css?family=Roboto:300,400,500,700
-http://maps.gstatic.com/mapfiles/undo_poly.png
-http://maps.gstatic.com/mapfiles/mv/imgs8.png
-http://maps.gstatic.com/mapfiles/transparent.png
-http://maps.gstatic.com/mapfiles/api-3/images/mapcnt3.png
-http://maps.gstatic.com/mapfiles/api-3/images/google_white2_hdpi.png
-http://maps.gstatic.com/mapfiles/api-3/images/google_white2.png
-http://maps.gstatic.com/mapfiles/openhand_8_8.cur
-
-# app files
-img/closedhand.cur
-img/openhand.cur
-img/logo.png
-img/blank.png
-img/marker-you.png
-img/apple-touch-icon.png
-img/markers/hab_nyan.gif
-img/markers/nyan.gif
-img/markers/antenna-green.png
-img/markers/balloon-red.png
-img/markers/balloon-blue.png
-img/markers/balloon-green.png
-img/markers/balloon-purple.png
-img/markers/balloon-cyan.png
-img/markers/balloon-orange.png
-img/markers/balloon-yellow.png
-img/markers/balloon-rpi.png
-img/markers/car-blue.png
-img/markers/car-green.png
-img/markers/car-red.png
-img/markers/car-yellow.png
-img/markers/parachute-blue.png
-img/markers/parachute-green.png
-img/markers/parachute-red.png
-img/markers/parachute-yellow.png
-img/markers/parachute-cyan.png
-img/markers/parachute-orange.png
-img/markers/parachute-purple.png
-img/markers/parachute-rpi.png
-img/markers/payload-blue.png
-img/markers/payload-cyan.png
-img/markers/payload-green.png
-img/markers/payload-orange.png
-img/markers/payload-purple.png
-img/markers/payload-red.png
-img/markers/payload-yellow.png
-img/markers/payload-rpi.png
-img/markers/shadow.png
-img/markers/target-blue.png
-img/markers/target-cyan.png
-img/markers/target-green.png
-img/markers/target-orange.png
-img/markers/target-purple.png
-img/markers/target-red.png
-img/markers/target-yellow.png
-img/hab-spinner.gif
-css/mobile.css
-js/mobile.js
-js/init_plot.js
-font/HabitatFont.eot
-font/HabitatFont.svg
-font/HabitatFont.ttf
-font/HabitatFont.woff
-font/Roboto-regular.woff
-
-NETWORK:
-*
-
-FALLBACK:
-/ index.html
diff --git a/index.html b/index.html
index 1eeadfd..21fb97c 100644
--- a/index.html
+++ b/index.html
@@ -414,13 +414,13 @@ <h3>Report Recovery</h3>
     <!-- Was 3.31-->
     <script type="text/javascript" language="javascript" src="https://www.google.com/recaptcha/api.js" async defer></script>
     <script type="text/javascript" language="javascript" src="https://xc5dqkj2cgb1.statuspage.io/embed/script.js" async defer></script>
-    <script type="text/javascript" language="javascript" src="js/skewt.js"></script>
-    <script type="text/javascript" language="javascript" src="js/aws-sdk-2.1029.0.min.js"></script>
-    <script type="text/javascript" language="javascript" src="js/leaflet.js"></script>
-    <script type="text/javascript" language="javascript" src="js/Leaflet.fullscreen.min.js"></script>
-    <script type="text/javascript" language="javascript" src="js/L.Terminator.js"></script>
-    <script type="text/javascript" language="javascript" src="js/L.TileLayer.NoGap.js"></script>
-    <script type="text/javascript" language="javascript" src="js/paho-mqtt.js"></script>
+    <script type="text/javascript" language="javascript" src="js/skewt.js?v={VER}"></script>
+    <script type="text/javascript" language="javascript" src="js/aws-sdk-2.1029.0.min.js?v={VER}"></script>
+    <script type="text/javascript" language="javascript" src="js/leaflet.js?v={VER}"></script>
+    <script type="text/javascript" language="javascript" src="js/Leaflet.fullscreen.min.js?v={VER}"></script>
+    <script type="text/javascript" language="javascript" src="js/L.Terminator.js?v={VER}"></script>
+    <script type="text/javascript" language="javascript" src="js/L.TileLayer.NoGap.js?v={VER}"></script>
+    <script type="text/javascript" language="javascript" src="js/paho-mqtt.js?v={VER}"></script>
     <!--
     <script type="text/javascript" language="javascript" src="js/iscroll.js"></script>
     <script type="text/javascript" language="javascript" src="js/jquery-1.12.4-min.js"></script>
@@ -430,9 +430,9 @@ <h3>Report Recovery</h3>
     <script type="text/javascript" language="javascript" src="js/tracker.js"></script>
     <script type="text/javascript" language="javascript" src="js/color-map.js"></script>
     -->
-    <script type="text/javascript" language="javascript" src="js/mobile.js"></script>
-    <script type="text/javascript" language="javascript" src="js/rbush.js"></script>
-    <script type="text/javascript" language="javascript" src="js/pwa.js"></script>
+    <script type="text/javascript" language="javascript" src="js/mobile.js?v={VER}"></script>
+    <script type="text/javascript" language="javascript" src="js/rbush.js?v={VER}"></script>
+    <script type="text/javascript" language="javascript" src="js/pwa.js?v={VER}"></script>
     
     </body>
 </html>
diff --git a/js/app.js b/js/app.js
index 4ef9d1d..a0df1bb 100644
--- a/js/app.js
+++ b/js/app.js
@@ -1018,6 +1018,7 @@ function check_version(){
         })
 }
 function update_site(){
+
     window.location.reload(true)
 }
 
diff --git a/service-worker.js b/service-worker.js
index c00d635..fc7d456 100644
--- a/service-worker.js
+++ b/service-worker.js
@@ -1,6 +1,6 @@
 self.addEventListener('install', function(event) {
     event.waitUntil(
-        caches.open(cacheName).then(function(cache) {
+        caches.open("{VER}").then(function(cache) {
             return cache.addAll(
                 [
                     '/css/mobile.css',