diff --git a/htdocs/js/mpd.min.js b/htdocs/js/mpd.min.js
index d5eb1ff..9d4810d 100644
--- a/htdocs/js/mpd.min.js
+++ b/htdocs/js/mpd.min.js
@@ -30,18 +30,20 @@ function appInit(){getSettings();sendAPI({cmd:"MPD_API_GET_OUTPUTNAMES"},parseOu
 function(){getSettings();document.getElementById("settingsFrm").classList.remove("was-validated");document.getElementById("inputCrossfade").classList.remove("is-invalid");document.getElementById("inputMixrampdb").classList.remove("is-invalid");document.getElementById("inputMixrampdelay").classList.remove("is-invalid")});document.getElementById("modalAddstream").addEventListener("shown.bs.modal",function(){var a=document.getElementById("streamUrl");a.focus();a.value="";a.classList.remove("is-invalid");
 document.getElementById("addStreamFrm").classList.remove("was-validated")});addFilterLetter("BrowseFilesystemFilterLetters");addFilterLetter("BrowseDatabaseFilterLetters");addFilterLetter("BrowsePlaylistsFilterLetters");for(var a=document.querySelectorAll("button[data-href], a[data-href]"),b=a.length,c=0;c<b;c++)a[c].addEventListener("click",function(a){a.preventDefault();a.stopPropagation();a=JSON.parse(this.getAttribute("data-href").replace(/'/g,'"'));if("function"===typeof window[a.cmd])switch(a.cmd){case "sendAPI":sendAPI.apply(null,
 $jscomp.arrayFromIterable(a.options));break;default:window[a.cmd].apply(null,$jscomp.arrayFromIterable(a.options))}},!1);a=document.querySelectorAll(".pages");b=a.length;for(c=0;c<b;c++)a[c].addEventListener("click",function(a){"BUTTON"==a.target.nodeName&&gotoPage(a.target.getAttribute("data-page"))},!1);document.getElementById("outputs").addEventListener("click",function(a){"BUTTON"==a.target.nodeName&&a.stopPropagation();sendAPI({cmd:"MPD_API_TOGGLE_OUTPUT",data:{output:a.target.getAttribute("data-output-id"),
-state:a.target.classList.contains("active")?0:1}});toggleBtn(a.target.id)},!1);var e=document.getElementById("QueueList").getElementsByTagName("tbody")[0];e.addEventListener("dragstart",function(a){"TR"==a.target.nodeName&&(a.target.classList.add("opacity05"),a.dataTransfer.setDragImage(a.target,0,0),a.dataTransfer.effectAllowed="move",a.dataTransfer.setData("Text",a.target.getAttribute("id")),dragEl=a.target.cloneNode(!0))},!1);e.addEventListener("dragleave",function(a){a.preventDefault();var b=
-a.target;"TD"==a.target.nodeName&&(b=a.target.parentNode);"TR"==b.nodeName&&b.classList.remove("dragover")},!1);e.addEventListener("dragover",function(a){a.preventDefault();for(var b=e.querySelectorAll(".dragover"),d=b.length,c=0;c<d;c++)b[c].classList.remove("dragover");b=a.target;"TD"==a.target.nodeName&&(b=a.target.parentNode);"TR"==b.nodeName&&b.classList.add("dragover");a.dataTransfer.dropEffect="move"},!1);e.addEventListener("dragend",function(a){for(var b=e.querySelectorAll(".dragover"),d=
-b.length,c=0;c<d;c++)b[c].classList.remove("dragover");document.getElementById(a.dataTransfer.getData("Text"))&&document.getElementById(a.dataTransfer.getData("Text")).classList.remove("opacity05")},!1);e.addEventListener("drop",function(a){a.stopPropagation();a.preventDefault();var b=a.target;"TD"==a.target.nodeName&&(b=a.target.parentNode);var d=document.getElementById(a.dataTransfer.getData("Text")).getAttribute("data-songpos"),c=b.getAttribute("data-songpos");document.getElementById(a.dataTransfer.getData("Text")).remove();
-dragEl.classList.remove("opacity05");e.insertBefore(dragEl,b);a=e.querySelectorAll(".dragover");b=a.length;for(var k=0;k<b;k++)a[k].classList.remove("dragover");document.getElementById("QueueList").classList.add("opacity05");sendAPI({cmd:"MPD_API_MOVE_TRACK",data:{from:d,to:c}})},!1);document.getElementById("QueueList").addEventListener("click",function(a){"TD"==a.target.nodeName?sendAPI({cmd:"MPD_API_PLAY_TRACK",data:{track:a.target.parentNode.getAttribute("data-trackid")}}):"A"==a.target.nodeName&&
-(a.preventDefault(),showMenu(a.target))},!1);document.getElementById("BrowseFilesystemList").addEventListener("click",function(a){if("TD"==a.target.nodeName)switch(a.target.parentNode.getAttribute("data-type")){case "dir":appGoto("Browse","Filesystem",void 0,"0/"+app.current.filter+"/"+decodeURI(a.target.parentNode.getAttribute("data-uri")));break;case "song":appendQueue("song",decodeURI(a.target.parentNode.getAttribute("data-uri")),a.target.parentNode.getAttribute("data-name"));break;case "plist":appendQueue("plist",
-decodeURI(a.target.parentNode.getAttribute("data-uri")),a.target.parentNode.getAttribute("data-name"))}else"A"==a.target.nodeName&&(a.preventDefault(),showMenu(a.target))},!1);document.getElementById("BrowsePlaylistsAllList").addEventListener("click",function(a){"TD"==a.target.nodeName?appendQueue("plist",decodeURI(a.target.parentNode.getAttribute("data-uri")),a.target.parentNode.getAttribute("data-name")):"A"==a.target.nodeName&&(a.preventDefault(),showMenu(a.target))},!1);document.getElementById("BrowsePlaylistsDetailList").addEventListener("click",
-function(a){"TD"==a.target.nodeName?appendQueue("plist",decodeURI(a.target.parentNode.getAttribute("data-uri")),a.target.parentNode.getAttribute("data-name")):"A"==a.target.nodeName&&(a.preventDefault(),showMenu(a.target))},!1);document.getElementById("BrowseDatabaseArtistList").addEventListener("click",function(a){"TD"==a.target.nodeName&&appGoto("Browse","Database","Album","0/-/"+a.target.parentNode.getAttribute("data-uri"))},!1);document.getElementById("SearchList").addEventListener("click",function(a){"TD"==
-a.target.nodeName?appendQueue("song",decodeURI(a.target.parentNode.getAttribute("data-uri")),a.target.parentNode.getAttribute("data-name")):"A"==a.target.nodeName&&(a.preventDefault(),showMenu(a.target))},!1);document.getElementById("searchtags").addEventListener("click",function(a){"BUTTON"==a.target.nodeName&&appGoto(app.current.app,app.current.tab,app.current.view,"0/"+a.target.innerText+"/"+app.current.search)},!1);document.getElementById("searchqueuestr").addEventListener("keyup",function(a){appGoto(app.current.app,
-app.current.tab,app.current.view,"0/"+app.current.filter+"/"+this.value)},!1);document.getElementById("searchqueuetag").addEventListener("click",function(a){"BUTTON"==a.target.nodeName&&appGoto(app.current.app,app.current.tab,app.current.view,app.current.page+"/"+a.target.innerText+"/"+app.current.search)},!1);document.getElementById("search").addEventListener("submit",function(){return!1},!1);document.getElementById("searchqueue").addEventListener("submit",function(){return!1},!1);document.getElementById("searchstr").addEventListener("keyup",
-function(a){appGoto("Search",void 0,void 0,"0/"+app.current.filter+"/"+this.value)},!1);window.addEventListener("hashchange",appRoute,!1);document.addEventListener("keydown",function(a){if("INPUT"!=a.target.tagName){switch(a.which){case 37:clickPrev();break;case 39:clickNext();break;case 32:clickPlay();break;default:return}a.preventDefault()}},!1);"serviceWorker"in navigator&&"https"==document.URL.substring(0,5)&&window.addEventListener("load",function(){navigator.serviceWorker.register("/sw.js",
-{scope:"/"}).then(function(a){console.log("ServiceWorker registration successful with scope: ",a.scope);a.update()},function(a){console.log("ServiceWorker registration failed: ",a)})});window.addEventListener("beforeinstallprompt",function(a){a.preventDefault();deferredPrompt=a});window.addEventListener("beforeinstallprompt",function(a){a.preventDefault();deferredPrompt=a;domCache.btnAdd.classList.remove("hide")});domCache.btnAdd.addEventListener("click",function(a){domCache.btnAdd.classList.add("hide");
-deferredPrompt.prompt();deferredPrompt.userChoice.then(function(a){"accepted"===a.outcome?console.log("User accepted the A2HS prompt"):console.log("User dismissed the A2HS prompt");deferredPrompt=null})});window.addEventListener("appinstalled",function(a){console.log("myMPD installed as app")})}
+state:a.target.classList.contains("active")?0:1}});toggleBtn(a.target.id)},!1);document.getElementById("QueueList").addEventListener("click",function(a){"TD"==a.target.nodeName?sendAPI({cmd:"MPD_API_PLAY_TRACK",data:{track:a.target.parentNode.getAttribute("data-trackid")}}):"A"==a.target.nodeName&&(a.preventDefault(),showMenu(a.target))},!1);document.getElementById("BrowseFilesystemList").addEventListener("click",function(a){if("TD"==a.target.nodeName)switch(a.target.parentNode.getAttribute("data-type")){case "dir":appGoto("Browse",
+"Filesystem",void 0,"0/"+app.current.filter+"/"+decodeURI(a.target.parentNode.getAttribute("data-uri")));break;case "song":appendQueue("song",decodeURI(a.target.parentNode.getAttribute("data-uri")),a.target.parentNode.getAttribute("data-name"));break;case "plist":appendQueue("plist",decodeURI(a.target.parentNode.getAttribute("data-uri")),a.target.parentNode.getAttribute("data-name"))}else"A"==a.target.nodeName&&(a.preventDefault(),showMenu(a.target))},!1);document.getElementById("BrowsePlaylistsAllList").addEventListener("click",
+function(a){"TD"==a.target.nodeName?appendQueue("plist",decodeURI(a.target.parentNode.getAttribute("data-uri")),a.target.parentNode.getAttribute("data-name")):"A"==a.target.nodeName&&(a.preventDefault(),showMenu(a.target))},!1);document.getElementById("BrowsePlaylistsDetailList").addEventListener("click",function(a){"TD"==a.target.nodeName?appendQueue("plist",decodeURI(a.target.parentNode.getAttribute("data-uri")),a.target.parentNode.getAttribute("data-name")):"A"==a.target.nodeName&&(a.preventDefault(),
+showMenu(a.target))},!1);document.getElementById("BrowseDatabaseArtistList").addEventListener("click",function(a){"TD"==a.target.nodeName&&appGoto("Browse","Database","Album","0/-/"+a.target.parentNode.getAttribute("data-uri"))},!1);document.getElementById("SearchList").addEventListener("click",function(a){"TD"==a.target.nodeName?appendQueue("song",decodeURI(a.target.parentNode.getAttribute("data-uri")),a.target.parentNode.getAttribute("data-name")):"A"==a.target.nodeName&&(a.preventDefault(),showMenu(a.target))},
+!1);document.getElementById("searchtags").addEventListener("click",function(a){"BUTTON"==a.target.nodeName&&appGoto(app.current.app,app.current.tab,app.current.view,"0/"+a.target.innerText+"/"+app.current.search)},!1);document.getElementById("searchqueuestr").addEventListener("keyup",function(a){appGoto(app.current.app,app.current.tab,app.current.view,"0/"+app.current.filter+"/"+this.value)},!1);document.getElementById("searchqueuetag").addEventListener("click",function(a){"BUTTON"==a.target.nodeName&&
+appGoto(app.current.app,app.current.tab,app.current.view,app.current.page+"/"+a.target.innerText+"/"+app.current.search)},!1);document.getElementById("search").addEventListener("submit",function(){return!1},!1);document.getElementById("searchqueue").addEventListener("submit",function(){return!1},!1);document.getElementById("searchstr").addEventListener("keyup",function(a){appGoto("Search",void 0,void 0,"0/"+app.current.filter+"/"+this.value)},!1);dragAndDropTable("QueueList");dragAndDropTable("BrowsePlaylistsDetailList");
+window.addEventListener("hashchange",appRoute,!1);document.addEventListener("keydown",function(a){if("INPUT"!=a.target.tagName){switch(a.which){case 37:clickPrev();break;case 39:clickNext();break;case 32:clickPlay();break;default:return}a.preventDefault()}},!1);"serviceWorker"in navigator&&"https"==document.URL.substring(0,5)&&window.addEventListener("load",function(){navigator.serviceWorker.register("/sw.js",{scope:"/"}).then(function(a){console.log("ServiceWorker registration successful with scope: ",
+a.scope);a.update()},function(a){console.log("ServiceWorker registration failed: ",a)})});window.addEventListener("beforeinstallprompt",function(a){a.preventDefault();deferredPrompt=a});window.addEventListener("beforeinstallprompt",function(a){a.preventDefault();deferredPrompt=a;domCache.btnAdd.classList.remove("hide")});domCache.btnAdd.addEventListener("click",function(a){domCache.btnAdd.classList.add("hide");deferredPrompt.prompt();deferredPrompt.userChoice.then(function(a){"accepted"===a.outcome?
+console.log("User accepted the A2HS prompt"):console.log("User dismissed the A2HS prompt");deferredPrompt=null})});window.addEventListener("appinstalled",function(a){console.log("myMPD installed as app")})}
+function dragAndDropTable(a){var b=document.getElementById(a).getElementsByTagName("tbody")[0];b.addEventListener("dragstart",function(a){"TR"==a.target.nodeName&&(a.target.classList.add("opacity05"),a.dataTransfer.setDragImage(a.target,0,0),a.dataTransfer.effectAllowed="move",a.dataTransfer.setData("Text",a.target.getAttribute("id")),dragEl=a.target.cloneNode(!0))},!1);b.addEventListener("dragleave",function(a){a.preventDefault();var b=a.target;"TD"==a.target.nodeName&&(b=a.target.parentNode);"TR"==
+b.nodeName&&b.classList.remove("dragover")},!1);b.addEventListener("dragover",function(a){a.preventDefault();for(var c=b.querySelectorAll(".dragover"),d=c.length,f=0;f<d;f++)c[f].classList.remove("dragover");c=a.target;"TD"==a.target.nodeName&&(c=a.target.parentNode);"TR"==c.nodeName&&c.classList.add("dragover");a.dataTransfer.dropEffect="move"},!1);b.addEventListener("dragend",function(a){for(var c=b.querySelectorAll(".dragover"),d=c.length,f=0;f<d;f++)c[f].classList.remove("dragover");document.getElementById(a.dataTransfer.getData("Text"))&&
+document.getElementById(a.dataTransfer.getData("Text")).classList.remove("opacity05")},!1);b.addEventListener("drop",function(c){c.stopPropagation();c.preventDefault();var e=c.target;"TD"==c.target.nodeName&&(e=c.target.parentNode);var d=document.getElementById(c.dataTransfer.getData("Text")).getAttribute("data-songpos"),f=e.getAttribute("data-songpos");document.getElementById(c.dataTransfer.getData("Text")).remove();dragEl.classList.remove("opacity05");b.insertBefore(dragEl,e);c=b.querySelectorAll(".dragover");
+e=c.length;for(var g=0;g<e;g++)c[g].classList.remove("dragover");document.getElementById(a).classList.add("opacity05");"Queue"==app.current.app?sendAPI({cmd:"MPD_API_MOVE_TRACK",data:{from:d,to:f}}):"Browse"==app.current.app&&"Playlists"==app.current.tab&&"Detail"==app.current.view&&playlistMoveTrack(d,f)},!1)}
+function playlistMoveTrack(a,b){sendAPI({cmd:"MPD_API_PLAYLIST_MOVE_TRACK",data:{plist:app.current.search,from:a,to:b}});sendAPI({cmd:"MPD_API_GET_PLAYLIST_LIST",data:{offset:app.current.page,filter:app.current.filter,uri:app.current.search}},parsePlaylists)}
 function webSocketConnect(){socket=new WebSocket(getWsUrl());try{socket.onopen=function(){console.log("connected");showNotification("Connected to myMPD","","","success");modalConnectionError.hide();appRoute()},socket.onmessage=function(a){if(a.data!==last_state&&0!=a.data.length){try{var b=JSON.parse(a.data)}catch(c){console.log("Invalid JSON data received: "+a.data)}switch(b.type){case "state":parseState(b);break;case "disconnected":showNotification("myMPD lost connection to MPD","","","danger");
 break;case "update_queue":"Queue"===app.current.app&&getQueue();break;case "song_change":songChange(b);break;case "error":showNotification(b.data,"","","danger")}}},socket.onclose=function(){console.log("disconnected");modalConnectionError.show();setTimeout(function(){console.log("reconnect");webSocketConnect()},3E3)}}catch(a){alert("Error: "+a)}}
 function getWsUrl(){var a=document.URL;if("https"==a.substring(0,5)){var b="wss://";a=a.substr(8)}else b="ws://","http"==a.substring(0,4)&&(a=a.substr(7));a=a.split("#");var c=/\/$/.test(a[0])?"":"/";return b+a[0]+c+"ws"}
@@ -69,9 +71,9 @@ app.current.tab)+"List").classList.remove("opacity05")}}
 function parsePlaylists(a){if("Browse"===app.current.app||"Playlists"===app.current.tab){"All"==app.current.view?(document.getElementById("BrowsePlaylistsAllList").classList.remove("hide"),document.getElementById("BrowsePlaylistsDetailList").classList.add("hide"),document.getElementById("btnBrowsePlaylistsAll").parentNode.classList.add("hide"),document.getElementById("btnPlaylistClear").parentNode.classList.add("hide")):(-1<a.uri.indexOf(".")?(document.getElementById("BrowsePlaylistsDetailList").setAttribute("data-ro",
 "true"),document.getElementById("btnPlaylistClear").parentNode.classList.add("hide")):(document.getElementById("BrowsePlaylistsDetailList").setAttribute("data-ro","false"),document.getElementById("btnPlaylistClear").parentNode.classList.remove("hide")),document.getElementById("BrowsePlaylistsDetailList").setAttribute("data-uri",a.uri),document.getElementById("BrowsePlaylistsDetailList").getElementsByTagName("caption")[0].innerText="Playlist: "+a.uri,document.getElementById("BrowsePlaylistsDetailList").classList.remove("hide"),
 document.getElementById("BrowsePlaylistsAllList").classList.add("hide"),document.getElementById("btnBrowsePlaylistsAll").parentNode.classList.remove("hide"));var b=a.data.length,c=document.getElementById(app.current.app+app.current.tab+app.current.view+"List").getElementsByTagName("tbody")[0],e=c.getElementsByTagName("tr");if("All"==app.current.view)for(var d=0;d<b;d++){var f=encodeURI(a.data[d].uri);if(!e[d]||e[d].getAttribute("data-uri")!=f){var g=new Date(1E3*a.data[d].last_modified),h=document.createElement("tr");
-h.setAttribute("data-uri",f);h.setAttribute("data-type","plist");h.setAttribute("data-name",a.data[d].name);h.innerHTML='<td><span class="material-icons">list</span></td><td>'+a.data[d].name+"</td><td>"+g.toUTCString()+'</td><td><a href="#" class="material-icons color-darkgrey">playlist_add</a></td>';d<e.length?e[d].replaceWith(h):c.append(h)}}else if("Detail"==app.current.view)for(d=0;d<b;d++)if(f=encodeURI(a.data[d].uri),!e[d]||e[d].getAttribute("data-uri")!=f){g=a.offset+d;h=document.createElement("tr");
-h.setAttribute("data-type",a.data[d].type);h.setAttribute("data-uri",f);h.setAttribute("data-name",a.data[d].name);h.setAttribute("data-songpos",g);f=Math.floor(a.data[d].duration/60);var k=a.data[d].duration-60*f;h.innerHTML="<td>"+(g+1)+"</td><td>"+a.data[d].title+"</td><td>"+a.data[d].artist+"</td><td>"+a.data[d].album+"</td><td>"+f+":"+(10>k?"0":"")+k+'</td><td><a href="#" class="material-icons color-darkgrey">playlist_add</a></td>';d<e.length?e[d].replaceWith(h):c.append(h)}for(d=e.length-1;d>=
-b;d--)e[d].remove();setPagination(a.totalEntities);0==b&&(c.innerHTML="All"==app.current.view?'<tr><td><span class="material-icons">error_outline</span></td><td colspan="5">No playlists found.</td></tr>':'<tr><td><span class="material-icons">error_outline</span></td><td colspan="5">Empty playlist.</td></tr>');document.getElementById(app.current.app+app.current.tab+app.current.view+"List").classList.remove("opacity05")}}
+h.setAttribute("data-uri",f);h.setAttribute("data-type","plist");h.setAttribute("data-name",a.data[d].name);h.innerHTML='<td><span class="material-icons">list</span></td><td>'+a.data[d].name+"</td><td>"+g.toUTCString()+'</td><td><a href="#" class="material-icons color-darkgrey">playlist_add</a></td>';d<e.length?e[d].replaceWith(h):c.append(h)}}else if("Detail"==app.current.view)for(d=0;d<b;d++)if(f=encodeURI(a.data[d].uri),g=a.offset+d+1,!e[d]||e[d].getAttribute("data-uri")!=f||e[d].getAttribute("id")!=
+"playlistTrackId"+g){h=document.createElement("tr");h.setAttribute("draggable","true");h.setAttribute("id","playlistTrackId"+g);h.setAttribute("data-type",a.data[d].type);h.setAttribute("data-uri",f);h.setAttribute("data-name",a.data[d].name);h.setAttribute("data-songpos",g);f=Math.floor(a.data[d].duration/60);var k=a.data[d].duration-60*f;h.innerHTML="<td>"+g+"</td><td>"+a.data[d].title+"</td><td>"+a.data[d].artist+"</td><td>"+a.data[d].album+"</td><td>"+f+":"+(10>k?"0":"")+k+'</td><td><a href="#" class="material-icons color-darkgrey">playlist_add</a></td>';
+d<e.length?e[d].replaceWith(h):c.append(h)}for(d=e.length-1;d>=b;d--)e[d].remove();setPagination(a.totalEntities);0==b&&(c.innerHTML="All"==app.current.view?'<tr><td><span class="material-icons">error_outline</span></td><td colspan="5">No playlists found.</td></tr>':'<tr><td><span class="material-icons">error_outline</span></td><td colspan="5">Empty playlist.</td></tr>');document.getElementById(app.current.app+app.current.tab+app.current.view+"List").classList.remove("opacity05")}}
 function parseListDBtags(a){if("Browse"===app.current.app||"Database"===app.current.tab||"Artist"===app.current.view)if("AlbumArtist"==a.tagtype){document.getElementById("BrowseDatabaseAlbumCards").classList.add("hide");document.getElementById("BrowseDatabaseArtistList").classList.remove("hide");document.getElementById("btnBrowseDatabaseArtist").parentNode.classList.add("hide");for(var b=a.data.length,c=document.getElementById(app.current.app+app.current.tab+app.current.view+"List").getElementsByTagName("tbody")[0],
 e=c.getElementsByTagName("tr"),d=0;d<b;d++){var f=encodeURI(a.data[d].value);if(!e[d]||e[d].getAttribute("data-uri")!=f){var g=document.createElement("tr");g.setAttribute("data-uri",f);g.innerHTML='<td><span class="material-icons">album</span></td><td>'+a.data[d].value+"</td>";d<e.length?e[d].replaceWith(g):c.append(g)}}for(d=e.length-1;d>=b;d--)e[d].remove();setPagination(a.totalEntities);0==b&&(c.innerHTML='<tr><td><span class="material-icons">error_outline</span></td><td colspan="5">No entries found.</td></tr>');
 document.getElementById("BrowseDatabaseArtistList").classList.remove("opacity05")}else if("Album"==a.tagtype){document.getElementById("BrowseDatabaseAlbumCards").classList.remove("hide");document.getElementById("BrowseDatabaseArtistList").classList.add("hide");document.getElementById("btnBrowseDatabaseArtist").parentNode.classList.remove("hide");b=a.data.length;c=document.getElementById("BrowseDatabaseAlbumCards");e=c.querySelectorAll(".col-md");for(d=0;d<b;d++)f=genId(a.data[d].value),e[d]&&e[d].getAttribute("id")==
diff --git a/htdocs/sw.js b/htdocs/sw.js
index 0404024..53970dc 100644
--- a/htdocs/sw.js
+++ b/htdocs/sw.js
@@ -20,52 +20,31 @@ var urlsToCache = [
 ];
 
 self.addEventListener('install', function(event) {
-    console.log('The service worker is being installed.');
-    event.waitUntil(preCache());
+    event.waitUntil(
+        caches.open(CACHE_NAME).then(function(cache) {
+            return cache.addAll(urlsToCache);
+        })
+    );
 });
 
 self.addEventListener('fetch', function(event) {
-    if (!navigator.onLine) {
-        event.respondWith(fromCache(event.request));
-    } 
-    else {
-        var url = event.request.url.replace(/^https?:\/\/[^\/]+/, '');
-        if (urlsToCache.includes(url)) {
-            event.respondWith(fromCache(event.request));
-            event.waitUntil(update(event.request));
-        }
-    }
+  event.respondWith(
+    caches.match(event.request).then(function(response) {
+        if (response)
+            return response
+        else
+            return fetch(event.request);
+      }
+    )
+  );    
 });
 
-function preCache() {
-    return caches.open(CACHE).then(function(cache) {
-        return cache.addAll(urlsToCache);
-    });
-}
-
-function fromCache(request) {
-    return caches.open(CACHE).then(function(cache) {
-        return cache.match(request).then(function(matching) {
-            return matching || Promise.reject('no-match');
-        });
-    });
-}
-
-function update(request) {
-    return caches.open(CACHE).then(function(cache) {
-        return fetch(request).then(function(response) {
-            return cache.put(request, response);
-        });
-    });
-}
-
 self.addEventListener('activate', function(event) {
-    var cacheWhitelist = ['myMPD-cache-v3.3.0'];
     event.waitUntil(
         caches.keys().then(function(cacheNames) {
             return Promise.all(
                 cacheNames.map(function(cacheName) {
-                    if (cacheWhitelist.indexOf(cacheName) === -1)
+                    if (cacheName != CACHE)
                         return caches.delete(cacheName);
                 })
             );
diff --git a/htdocs/sw.min.js b/htdocs/sw.min.js
index 48f460f..587adee 100644
--- a/htdocs/sw.min.js
+++ b/htdocs/sw.min.js
@@ -1,18 +1,14 @@
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