diff --git a/pkg/analytics/google-analytics.go b/pkg/analytics/google-analytics.go
index efe194f8..82851462 100644
--- a/pkg/analytics/google-analytics.go
+++ b/pkg/analytics/google-analytics.go
@@ -10,7 +10,7 @@ import (
 // field to initialize Google Analytics.
 func GoogleAnalyticsHeader(propertyID string) string {
 	return fmt.Sprintf(`<!-- Global site tag (gtag.js) - Google Analytics -->
-	<script async src="https://www.googletagmanager.com/gtag/js?id=%s"></script>
+	<script defer src="https://www.googletagmanager.com/gtag/js?id=%s"></script>
 	<script>
 	  window.dataLayer = window.dataLayer || [];
 	  function gtag(){dataLayer.push(arguments);}
diff --git a/pkg/app/engine.go b/pkg/app/engine.go
index a6b461cc..2e89765e 100644
--- a/pkg/app/engine.go
+++ b/pkg/app/engine.go
@@ -340,7 +340,7 @@ func (e *engineX) Encode(w *bytes.Buffer, document HTMLHtml) error {
 	children = append(children, body.body()...)
 	body.setBody(children)
 
-	w.WriteString("<!DOCTYPE html>\n")
+	w.WriteString("<!doctype html>\n")
 	e.nodes.Encode(e.baseContext(), w, document)
 	return nil
 }
diff --git a/pkg/app/engine_test.go b/pkg/app/engine_test.go
index 61fe20de..28f6f7a6 100644
--- a/pkg/app/engine_test.go
+++ b/pkg/app/engine_test.go
@@ -266,7 +266,7 @@ func TestEngineEncode(t *testing.T) {
 			),
 		))
 		require.NoError(t, err)
-		require.Equal(t, "<!DOCTYPE html>\n<html>\n  <body>\n    <span></span>\n    bye\n  </body>\n</html>", b.String())
+		require.Equal(t, "<!doctype html>\n<html>\n  <body>\n    <span></span>\n    bye\n  </body>\n</html>", b.String())
 	})
 }
 
diff --git a/pkg/app/gen/app-worker.js b/pkg/app/gen/app-worker.js
index 5dbcb456..57adde5f 100644
--- a/pkg/app/gen/app-worker.js
+++ b/pkg/app/gen/app-worker.js
@@ -4,28 +4,41 @@
 const cacheName = "app-" + "{{.Version}}";
 const resourcesToCache = {{.ResourcesToCache}};
 
-self.addEventListener("install", (event) => {
-  console.log("installing app worker {{.Version}}");
-  event.waitUntil(installWorker());
+self.addEventListener("install", async (event) => {
+  try {
+    console.log("installing app worker {{.Version}}");
+    await installWorker();
+    await self.skipWaiting();
+  } catch (error) {
+    console.error("error during installation:", error);
+  }
 });
 
 async function installWorker() {
   const cache = await caches.open(cacheName);
   await cache.addAll(resourcesToCache);
-  await self.skipWaiting(); // Use this new service worker
 }
 
-self.addEventListener("activate", (event) => {
-  event.waitUntil(deletePreviousCaches());
-  console.log("app worker {{.Version}} is activated");
+self.addEventListener("activate", async (event) => {
+  try {
+    await deletePreviousCaches(); // Await cache cleanup
+    await self.clients.claim(); // Ensure the service worker takes control of the clients
+    console.log("app worker {{.Version}} is activated");
+  } catch (error) {
+    console.error("error during activation:", error);
+  }
 });
 
 async function deletePreviousCaches() {
   keys = await caches.keys();
   keys.forEach(async (key) => {
     if (key != cacheName) {
-      console.log("deleting", key, "cache");
-      await caches.delete(key);
+      try {
+        console.log("deleting", key, "cache");
+        await caches.delete(key);
+      } catch (err) {
+        console.error("deleting", key, "cache failed:", err);
+      }
     }
   });
 }
@@ -35,11 +48,11 @@ self.addEventListener("fetch", (event) => {
 });
 
 async function fetchWithCache(request) {
-  cachedResponse = await caches.match(request);
+  const cachedResponse = await caches.match(request);
   if (cachedResponse) {
     return cachedResponse;
   }
-  return fetch(request);
+  return await fetch(request);
 }
 
 // -----------------------------------------------------------------------------
diff --git a/pkg/app/gen/app.js b/pkg/app/gen/app.js
index d034fd63..6ba8ed5c 100644
--- a/pkg/app/gen/app.js
+++ b/pkg/app/gen/app.js
@@ -31,18 +31,16 @@ goappInitWebAssembly();
 // -----------------------------------------------------------------------------
 async function goappInitServiceWorker() {
   if ("serviceWorker" in navigator) {
-    window.addEventListener("load", async () => {
-      try {
-        const registration = await navigator.serviceWorker.register(
-          "{{.WorkerJS}}"
-        );
-        goappServiceWorkerRegistration = registration;
-        goappSetupNotifyUpdate(registration);
-        goappSetupPushNotification();
-      } catch (err) {
-        console.error("goapp service worker registration failed: ", err);
-      }
-    });
+    try {
+      const registration = await navigator.serviceWorker.register(
+        "{{.WorkerJS}}"
+      );
+      goappServiceWorkerRegistration = registration;
+      goappSetupNotifyUpdate(registration);
+      goappSetupPushNotification();
+    } catch (err) {
+      console.error("goapp service worker registration failed: ", err);
+    }
   }
 }
 
@@ -64,10 +62,11 @@ function goappSetupNotifyUpdate(registration) {
       if (!navigator.serviceWorker.controller) {
         return;
       }
-      if (newSW.state != "activated") {
-        return;
+
+      switch (newSW.state) {
+        case "installed":
+          goappOnUpdate();
       }
-      goappOnUpdate();
     });
   });
 }
diff --git a/pkg/app/http.go b/pkg/app/http.go
index d6c21dc4..f45dd3a6 100644
--- a/pkg/app/http.go
+++ b/pkg/app/http.go
@@ -347,12 +347,12 @@ func (h *Handler) makeAppWorkerJS() []byte {
 		"/app.js",
 		"/manifest.webmanifest",
 		"/wasm_exec.js",
-		"/",
 		"/web/app.wasm",
+		"/",
 	)
+	setResources(h.Fonts...)
 	setResources(h.Icon.Default, h.Icon.Large, h.Icon.Maskable)
 	setResources(h.Styles...)
-	setResources(h.Fonts...)
 	setResources(h.Scripts...)
 	setResources(h.CacheableResources...)
 
@@ -361,7 +361,7 @@ func (h *Handler) makeAppWorkerJS() []byte {
 		resourcesTocache = append(resourcesTocache, h.Resources.Resolve(k))
 	}
 	sort.Slice(resourcesTocache, func(a, b int) bool {
-		return strings.Compare(resourcesTocache[a], resourcesTocache[b]) < 0
+		return strings.Compare(resourcesTocache[a], resourcesTocache[b]) > 0
 	})
 
 	var b bytes.Buffer
@@ -647,7 +647,10 @@ func (h *Handler) servePage(w http.ResponseWriter, r *http.Request) {
 					Content(h.ThemeColor),
 				Meta().
 					Name("viewport").
-					Content("width=device-width, initial-scale=1, maximum-scale=1, user-scalable=0, viewport-fit=cover"),
+					Content("width=device-width, initial-scale=1, viewport-fit=cover"),
+				Meta().
+					Name("apple-mobile-web-app-capable").
+					Content("yes"),
 				Meta().
 					Property("og:url").
 					Content(resolveOGResource(h.Domain, h.Resources.Resolve(page.URL().Path))),
@@ -706,15 +709,6 @@ func (h *Handler) servePage(w http.ResponseWriter, r *http.Request) {
 					}
 					return nil
 				}),
-				Range(h.Styles).Slice(func(i int) UI {
-					if resource := parseHTTPResource(h.Styles[i]); resource.URL != "" {
-						return resource.toLink().
-							Type("text/css").
-							Rel("preload").
-							As("style")
-					}
-					return nil
-				}),
 				Link().
 					Rel("icon").
 					Href(icon),
diff --git a/pkg/app/http_test.go b/pkg/app/http_test.go
index 9751a8e0..796e76bc 100644
--- a/pkg/app/http_test.go
+++ b/pkg/app/http_test.go
@@ -263,8 +263,8 @@ func TestHandlerServeAppWorkerJSWithLocalDir(t *testing.T) {
 	body := w.Body.String()
 	require.Equal(t, http.StatusOK, w.Code)
 	require.Equal(t, "application/javascript", w.Header().Get("Content-Type"))
-	require.Contains(t, body, `self.addEventListener("install", (event) => {`)
-	require.Contains(t, body, `self.addEventListener("activate", (event) => {`)
+	require.Contains(t, body, `self.addEventListener("install", async (event) => {`)
+	require.Contains(t, body, `self.addEventListener("activate", async (event) => {`)
 	require.Contains(t, body, `self.addEventListener("fetch", (event) => {`)
 	require.Contains(t, body, `"/web/hello.css"`)
 	require.Contains(t, body, `"/web/hello.js"`)
@@ -294,8 +294,8 @@ func TestHandlerServeAppWorkerJSWithRemoteBucket(t *testing.T) {
 	body := w.Body.String()
 	require.Equal(t, http.StatusOK, w.Code)
 	require.Equal(t, "application/javascript", w.Header().Get("Content-Type"))
-	require.Contains(t, body, `self.addEventListener("install", (event) => {`)
-	require.Contains(t, body, `self.addEventListener("activate", (event) => {`)
+	require.Contains(t, body, `self.addEventListener("install", async (event) => {`)
+	require.Contains(t, body, `self.addEventListener("activate", async (event) => {`)
 	require.Contains(t, body, `self.addEventListener("fetch", (event) => {`)
 	require.Contains(t, body, `"https://storage.googleapis.com/go-app/web/hello.css"`)
 	require.Contains(t, body, `"https://storage.googleapis.com/go-app/web/hello.js"`)
@@ -325,8 +325,8 @@ func TestHandlerServeAppWorkerJSWithGitHubPages(t *testing.T) {
 	body := w.Body.String()
 	require.Equal(t, http.StatusOK, w.Code)
 	require.Equal(t, "application/javascript", w.Header().Get("Content-Type"))
-	require.Contains(t, body, `self.addEventListener("install", (event) => {`)
-	require.Contains(t, body, `self.addEventListener("activate", (event) => {`)
+	require.Contains(t, body, `self.addEventListener("install", async (event) => {`)
+	require.Contains(t, body, `self.addEventListener("activate", async (event) => {`)
 	require.Contains(t, body, `self.addEventListener("fetch", (event) => {`)
 	require.Contains(t, body, `"/go-app/web/hello.css"`)
 	require.Contains(t, body, `"/go-app/web/hello.js"`)
diff --git a/pkg/app/scripts.go b/pkg/app/scripts.go
index 08adcad3..0d7de09e 100644
--- a/pkg/app/scripts.go
+++ b/pkg/app/scripts.go
@@ -6,11 +6,11 @@ package app
 
 const (
 	// The default template used to generate app-worker.js.
-	DefaultAppWorkerJS = "// -----------------------------------------------------------------------------\n// PWA\n// -----------------------------------------------------------------------------\nconst cacheName = \"app-\" + \"{{.Version}}\";\nconst resourcesToCache = {{.ResourcesToCache}};\n\nself.addEventListener(\"install\", (event) => {\n  console.log(\"installing app worker {{.Version}}\");\n  event.waitUntil(installWorker());\n});\n\nasync function installWorker() {\n  const cache = await caches.open(cacheName);\n  await cache.addAll(resourcesToCache);\n  await self.skipWaiting(); // Use this new service worker\n}\n\nself.addEventListener(\"activate\", (event) => {\n  event.waitUntil(deletePreviousCaches());\n  console.log(\"app worker {{.Version}} is activated\");\n});\n\nasync function deletePreviousCaches() {\n  keys = await caches.keys();\n  keys.forEach(async (key) => {\n    if (key != cacheName) {\n      console.log(\"deleting\", key, \"cache\");\n      await caches.delete(key);\n    }\n  });\n}\n\nself.addEventListener(\"fetch\", (event) => {\n  event.respondWith(fetchWithCache(event.request));\n});\n\nasync function fetchWithCache(request) {\n  cachedResponse = await caches.match(request);\n  if (cachedResponse) {\n    return cachedResponse;\n  }\n  return fetch(request);\n}\n\n// -----------------------------------------------------------------------------\n// Push Notifications\n// -----------------------------------------------------------------------------\nself.addEventListener(\"push\", (event) => {\n  if (!event.data || !event.data.text()) {\n    return;\n  }\n\n  const notification = JSON.parse(event.data.text());\n  if (!notification) {\n    return;\n  }\n\n  const title = notification.title;\n  delete notification.title;\n\n  if (!notification.data) {\n    notification.data = {};\n  }\n  let actions = [];\n  for (let i in notification.actions) {\n    const action = notification.actions[i];\n\n    actions.push({\n      action: action.action,\n      path: action.path,\n    });\n\n    delete action.path;\n  }\n  notification.data.goapp = {\n    path: notification.path,\n    actions: actions,\n  };\n  delete notification.path;\n\n  event.waitUntil(self.registration.showNotification(title, notification));\n});\n\nself.addEventListener(\"notificationclick\", (event) => {\n  event.notification.close();\n\n  const notification = event.notification;\n  let path = notification.data.goapp.path;\n\n  for (let i in notification.data.goapp.actions) {\n    const action = notification.data.goapp.actions[i];\n    if (action.action === event.action) {\n      path = action.path;\n      break;\n    }\n  }\n\n  event.waitUntil(\n    clients\n      .matchAll({\n        type: \"window\",\n      })\n      .then((clientList) => {\n        for (var i = 0; i < clientList.length; i++) {\n          let client = clientList[i];\n          if (\"focus\" in client) {\n            client.focus();\n            client.postMessage({\n              goapp: {\n                type: \"notification\",\n                path: path,\n              },\n            });\n            return;\n          }\n        }\n\n        if (clients.openWindow) {\n          return clients.openWindow(path);\n        }\n      })\n  );\n});\n"
+	DefaultAppWorkerJS = "// -----------------------------------------------------------------------------\n// PWA\n// -----------------------------------------------------------------------------\nconst cacheName = \"app-\" + \"{{.Version}}\";\nconst resourcesToCache = {{.ResourcesToCache}};\n\nself.addEventListener(\"install\", async (event) => {\n  try {\n    console.log(\"installing app worker {{.Version}}\");\n    await installWorker();\n    await self.skipWaiting();\n  } catch (error) {\n    console.error(\"error during installation:\", error);\n  }\n});\n\nasync function installWorker() {\n  const cache = await caches.open(cacheName);\n  await cache.addAll(resourcesToCache);\n}\n\nself.addEventListener(\"activate\", async (event) => {\n  try {\n    await deletePreviousCaches(); // Await cache cleanup\n    await self.clients.claim(); // Ensure the service worker takes control of the clients\n    console.log(\"app worker {{.Version}} is activated\");\n  } catch (error) {\n    console.error(\"error during activation:\", error);\n  }\n});\n\nasync function deletePreviousCaches() {\n  keys = await caches.keys();\n  keys.forEach(async (key) => {\n    if (key != cacheName) {\n      try {\n        console.log(\"deleting\", key, \"cache\");\n        await caches.delete(key);\n      } catch (err) {\n        console.error(\"deleting\", key, \"cache failed:\", err);\n      }\n    }\n  });\n}\n\nself.addEventListener(\"fetch\", (event) => {\n  event.respondWith(fetchWithCache(event.request));\n});\n\nasync function fetchWithCache(request) {\n  const cachedResponse = await caches.match(request);\n  if (cachedResponse) {\n    return cachedResponse;\n  }\n  return await fetch(request);\n}\n\n// -----------------------------------------------------------------------------\n// Push Notifications\n// -----------------------------------------------------------------------------\nself.addEventListener(\"push\", (event) => {\n  if (!event.data || !event.data.text()) {\n    return;\n  }\n\n  const notification = JSON.parse(event.data.text());\n  if (!notification) {\n    return;\n  }\n\n  const title = notification.title;\n  delete notification.title;\n\n  if (!notification.data) {\n    notification.data = {};\n  }\n  let actions = [];\n  for (let i in notification.actions) {\n    const action = notification.actions[i];\n\n    actions.push({\n      action: action.action,\n      path: action.path,\n    });\n\n    delete action.path;\n  }\n  notification.data.goapp = {\n    path: notification.path,\n    actions: actions,\n  };\n  delete notification.path;\n\n  event.waitUntil(self.registration.showNotification(title, notification));\n});\n\nself.addEventListener(\"notificationclick\", (event) => {\n  event.notification.close();\n\n  const notification = event.notification;\n  let path = notification.data.goapp.path;\n\n  for (let i in notification.data.goapp.actions) {\n    const action = notification.data.goapp.actions[i];\n    if (action.action === event.action) {\n      path = action.path;\n      break;\n    }\n  }\n\n  event.waitUntil(\n    clients\n      .matchAll({\n        type: \"window\",\n      })\n      .then((clientList) => {\n        for (var i = 0; i < clientList.length; i++) {\n          let client = clientList[i];\n          if (\"focus\" in client) {\n            client.focus();\n            client.postMessage({\n              goapp: {\n                type: \"notification\",\n                path: path,\n              },\n            });\n            return;\n          }\n        }\n\n        if (clients.openWindow) {\n          return clients.openWindow(path);\n        }\n      })\n  );\n});\n"
 
 	wasmExecJSGoCurrent = "// Copyright 2018 The Go Authors. All rights reserved.\n// Use of this source code is governed by a BSD-style\n// license that can be found in the LICENSE file.\n\n\"use strict\";\n\n(() => {\n\tconst enosys = () => {\n\t\tconst err = new Error(\"not implemented\");\n\t\terr.code = \"ENOSYS\";\n\t\treturn err;\n\t};\n\n\tif (!globalThis.fs) {\n\t\tlet outputBuf = \"\";\n\t\tglobalThis.fs = {\n\t\t\tconstants: { O_WRONLY: -1, O_RDWR: -1, O_CREAT: -1, O_TRUNC: -1, O_APPEND: -1, O_EXCL: -1 }, // unused\n\t\t\twriteSync(fd, buf) {\n\t\t\t\toutputBuf += decoder.decode(buf);\n\t\t\t\tconst nl = outputBuf.lastIndexOf(\"\\n\");\n\t\t\t\tif (nl != -1) {\n\t\t\t\t\tconsole.log(outputBuf.substring(0, nl));\n\t\t\t\t\toutputBuf = outputBuf.substring(nl + 1);\n\t\t\t\t}\n\t\t\t\treturn buf.length;\n\t\t\t},\n\t\t\twrite(fd, buf, offset, length, position, callback) {\n\t\t\t\tif (offset !== 0 || length !== buf.length || position !== null) {\n\t\t\t\t\tcallback(enosys());\n\t\t\t\t\treturn;\n\t\t\t\t}\n\t\t\t\tconst n = this.writeSync(fd, buf);\n\t\t\t\tcallback(null, n);\n\t\t\t},\n\t\t\tchmod(path, mode, callback) { callback(enosys()); },\n\t\t\tchown(path, uid, gid, callback) { callback(enosys()); },\n\t\t\tclose(fd, callback) { callback(enosys()); },\n\t\t\tfchmod(fd, mode, callback) { callback(enosys()); },\n\t\t\tfchown(fd, uid, gid, callback) { callback(enosys()); },\n\t\t\tfstat(fd, callback) { callback(enosys()); },\n\t\t\tfsync(fd, callback) { callback(null); },\n\t\t\tftruncate(fd, length, callback) { callback(enosys()); },\n\t\t\tlchown(path, uid, gid, callback) { callback(enosys()); },\n\t\t\tlink(path, link, callback) { callback(enosys()); },\n\t\t\tlstat(path, callback) { callback(enosys()); },\n\t\t\tmkdir(path, perm, callback) { callback(enosys()); },\n\t\t\topen(path, flags, mode, callback) { callback(enosys()); },\n\t\t\tread(fd, buffer, offset, length, position, callback) { callback(enosys()); },\n\t\t\treaddir(path, callback) { callback(enosys()); },\n\t\t\treadlink(path, callback) { callback(enosys()); },\n\t\t\trename(from, to, callback) { callback(enosys()); },\n\t\t\trmdir(path, callback) { callback(enosys()); },\n\t\t\tstat(path, callback) { callback(enosys()); },\n\t\t\tsymlink(path, link, callback) { callback(enosys()); },\n\t\t\ttruncate(path, length, callback) { callback(enosys()); },\n\t\t\tunlink(path, callback) { callback(enosys()); },\n\t\t\tutimes(path, atime, mtime, callback) { callback(enosys()); },\n\t\t};\n\t}\n\n\tif (!globalThis.process) {\n\t\tglobalThis.process = {\n\t\t\tgetuid() { return -1; },\n\t\t\tgetgid() { return -1; },\n\t\t\tgeteuid() { return -1; },\n\t\t\tgetegid() { return -1; },\n\t\t\tgetgroups() { throw enosys(); },\n\t\t\tpid: -1,\n\t\t\tppid: -1,\n\t\t\tumask() { throw enosys(); },\n\t\t\tcwd() { throw enosys(); },\n\t\t\tchdir() { throw enosys(); },\n\t\t}\n\t}\n\n\tif (!globalThis.crypto) {\n\t\tthrow new Error(\"globalThis.crypto is not available, polyfill required (crypto.getRandomValues only)\");\n\t}\n\n\tif (!globalThis.performance) {\n\t\tthrow new Error(\"globalThis.performance is not available, polyfill required (performance.now only)\");\n\t}\n\n\tif (!globalThis.TextEncoder) {\n\t\tthrow new Error(\"globalThis.TextEncoder is not available, polyfill required\");\n\t}\n\n\tif (!globalThis.TextDecoder) {\n\t\tthrow new Error(\"globalThis.TextDecoder is not available, polyfill required\");\n\t}\n\n\tconst encoder = new TextEncoder(\"utf-8\");\n\tconst decoder = new TextDecoder(\"utf-8\");\n\n\tglobalThis.Go = class {\n\t\tconstructor() {\n\t\t\tthis.argv = [\"js\"];\n\t\t\tthis.env = {};\n\t\t\tthis.exit = (code) => {\n\t\t\t\tif (code !== 0) {\n\t\t\t\t\tconsole.warn(\"exit code:\", code);\n\t\t\t\t}\n\t\t\t};\n\t\t\tthis._exitPromise = new Promise((resolve) => {\n\t\t\t\tthis._resolveExitPromise = resolve;\n\t\t\t});\n\t\t\tthis._pendingEvent = null;\n\t\t\tthis._scheduledTimeouts = new Map();\n\t\t\tthis._nextCallbackTimeoutID = 1;\n\n\t\t\tconst setInt64 = (addr, v) => {\n\t\t\t\tthis.mem.setUint32(addr + 0, v, true);\n\t\t\t\tthis.mem.setUint32(addr + 4, Math.floor(v / 4294967296), true);\n\t\t\t}\n\n\t\t\tconst setInt32 = (addr, v) => {\n\t\t\t\tthis.mem.setUint32(addr + 0, v, true);\n\t\t\t}\n\n\t\t\tconst getInt64 = (addr) => {\n\t\t\t\tconst low = this.mem.getUint32(addr + 0, true);\n\t\t\t\tconst high = this.mem.getInt32(addr + 4, true);\n\t\t\t\treturn low + high * 4294967296;\n\t\t\t}\n\n\t\t\tconst loadValue = (addr) => {\n\t\t\t\tconst f = this.mem.getFloat64(addr, true);\n\t\t\t\tif (f === 0) {\n\t\t\t\t\treturn undefined;\n\t\t\t\t}\n\t\t\t\tif (!isNaN(f)) {\n\t\t\t\t\treturn f;\n\t\t\t\t}\n\n\t\t\t\tconst id = this.mem.getUint32(addr, true);\n\t\t\t\treturn this._values[id];\n\t\t\t}\n\n\t\t\tconst storeValue = (addr, v) => {\n\t\t\t\tconst nanHead = 0x7FF80000;\n\n\t\t\t\tif (typeof v === \"number\" && v !== 0) {\n\t\t\t\t\tif (isNaN(v)) {\n\t\t\t\t\t\tthis.mem.setUint32(addr + 4, nanHead, true);\n\t\t\t\t\t\tthis.mem.setUint32(addr, 0, true);\n\t\t\t\t\t\treturn;\n\t\t\t\t\t}\n\t\t\t\t\tthis.mem.setFloat64(addr, v, true);\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tif (v === undefined) {\n\t\t\t\t\tthis.mem.setFloat64(addr, 0, true);\n\t\t\t\t\treturn;\n\t\t\t\t}\n\n\t\t\t\tlet id = this._ids.get(v);\n\t\t\t\tif (id === undefined) {\n\t\t\t\t\tid = this._idPool.pop();\n\t\t\t\t\tif (id === undefined) {\n\t\t\t\t\t\tid = this._values.length;\n\t\t\t\t\t}\n\t\t\t\t\tthis._values[id] = v;\n\t\t\t\t\tthis._goRefCounts[id] = 0;\n\t\t\t\t\tthis._ids.set(v, id);\n\t\t\t\t}\n\t\t\t\tthis._goRefCounts[id]++;\n\t\t\t\tlet typeFlag = 0;\n\t\t\t\tswitch (typeof v) {\n\t\t\t\t\tcase \"object\":\n\t\t\t\t\t\tif (v !== null) {\n\t\t\t\t\t\t\ttypeFlag = 1;\n\t\t\t\t\t\t}\n\t\t\t\t\t\tbreak;\n\t\t\t\t\tcase \"string\":\n\t\t\t\t\t\ttypeFlag = 2;\n\t\t\t\t\t\tbreak;\n\t\t\t\t\tcase \"symbol\":\n\t\t\t\t\t\ttypeFlag = 3;\n\t\t\t\t\t\tbreak;\n\t\t\t\t\tcase \"function\":\n\t\t\t\t\t\ttypeFlag = 4;\n\t\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t\tthis.mem.setUint32(addr + 4, nanHead | typeFlag, true);\n\t\t\t\tthis.mem.setUint32(addr, id, true);\n\t\t\t}\n\n\t\t\tconst loadSlice = (addr) => {\n\t\t\t\tconst array = getInt64(addr + 0);\n\t\t\t\tconst len = getInt64(addr + 8);\n\t\t\t\treturn new Uint8Array(this._inst.exports.mem.buffer, array, len);\n\t\t\t}\n\n\t\t\tconst loadSliceOfValues = (addr) => {\n\t\t\t\tconst array = getInt64(addr + 0);\n\t\t\t\tconst len = getInt64(addr + 8);\n\t\t\t\tconst a = new Array(len);\n\t\t\t\tfor (let i = 0; i < len; i++) {\n\t\t\t\t\ta[i] = loadValue(array + i * 8);\n\t\t\t\t}\n\t\t\t\treturn a;\n\t\t\t}\n\n\t\t\tconst loadString = (addr) => {\n\t\t\t\tconst saddr = getInt64(addr + 0);\n\t\t\t\tconst len = getInt64(addr + 8);\n\t\t\t\treturn decoder.decode(new DataView(this._inst.exports.mem.buffer, saddr, len));\n\t\t\t}\n\n\t\t\tconst timeOrigin = Date.now() - performance.now();\n\t\t\tthis.importObject = {\n\t\t\t\t_gotest: {\n\t\t\t\t\tadd: (a, b) => a + b,\n\t\t\t\t},\n\t\t\t\tgojs: {\n\t\t\t\t\t// Go's SP does not change as long as no Go code is running. Some operations (e.g. calls, getters and setters)\n\t\t\t\t\t// may synchronously trigger a Go event handler. This makes Go code get executed in the middle of the imported\n\t\t\t\t\t// function. A goroutine can switch to a new stack if the current stack is too small (see morestack function).\n\t\t\t\t\t// This changes the SP, thus we have to update the SP used by the imported function.\n\n\t\t\t\t\t// func wasmExit(code int32)\n\t\t\t\t\t\"runtime.wasmExit\": (sp) => {\n\t\t\t\t\t\tsp >>>= 0;\n\t\t\t\t\t\tconst code = this.mem.getInt32(sp + 8, true);\n\t\t\t\t\t\tthis.exited = true;\n\t\t\t\t\t\tdelete this._inst;\n\t\t\t\t\t\tdelete this._values;\n\t\t\t\t\t\tdelete this._goRefCounts;\n\t\t\t\t\t\tdelete this._ids;\n\t\t\t\t\t\tdelete this._idPool;\n\t\t\t\t\t\tthis.exit(code);\n\t\t\t\t\t},\n\n\t\t\t\t\t// func wasmWrite(fd uintptr, p unsafe.Pointer, n int32)\n\t\t\t\t\t\"runtime.wasmWrite\": (sp) => {\n\t\t\t\t\t\tsp >>>= 0;\n\t\t\t\t\t\tconst fd = getInt64(sp + 8);\n\t\t\t\t\t\tconst p = getInt64(sp + 16);\n\t\t\t\t\t\tconst n = this.mem.getInt32(sp + 24, true);\n\t\t\t\t\t\tfs.writeSync(fd, new Uint8Array(this._inst.exports.mem.buffer, p, n));\n\t\t\t\t\t},\n\n\t\t\t\t\t// func resetMemoryDataView()\n\t\t\t\t\t\"runtime.resetMemoryDataView\": (sp) => {\n\t\t\t\t\t\tsp >>>= 0;\n\t\t\t\t\t\tthis.mem = new DataView(this._inst.exports.mem.buffer);\n\t\t\t\t\t},\n\n\t\t\t\t\t// func nanotime1() int64\n\t\t\t\t\t\"runtime.nanotime1\": (sp) => {\n\t\t\t\t\t\tsp >>>= 0;\n\t\t\t\t\t\tsetInt64(sp + 8, (timeOrigin + performance.now()) * 1000000);\n\t\t\t\t\t},\n\n\t\t\t\t\t// func walltime() (sec int64, nsec int32)\n\t\t\t\t\t\"runtime.walltime\": (sp) => {\n\t\t\t\t\t\tsp >>>= 0;\n\t\t\t\t\t\tconst msec = (new Date).getTime();\n\t\t\t\t\t\tsetInt64(sp + 8, msec / 1000);\n\t\t\t\t\t\tthis.mem.setInt32(sp + 16, (msec % 1000) * 1000000, true);\n\t\t\t\t\t},\n\n\t\t\t\t\t// func scheduleTimeoutEvent(delay int64) int32\n\t\t\t\t\t\"runtime.scheduleTimeoutEvent\": (sp) => {\n\t\t\t\t\t\tsp >>>= 0;\n\t\t\t\t\t\tconst id = this._nextCallbackTimeoutID;\n\t\t\t\t\t\tthis._nextCallbackTimeoutID++;\n\t\t\t\t\t\tthis._scheduledTimeouts.set(id, setTimeout(\n\t\t\t\t\t\t\t() => {\n\t\t\t\t\t\t\t\tthis._resume();\n\t\t\t\t\t\t\t\twhile (this._scheduledTimeouts.has(id)) {\n\t\t\t\t\t\t\t\t\t// for some reason Go failed to register the timeout event, log and try again\n\t\t\t\t\t\t\t\t\t// (temporary workaround for https://github.com/golang/go/issues/28975)\n\t\t\t\t\t\t\t\t\tconsole.warn(\"scheduleTimeoutEvent: missed timeout event\");\n\t\t\t\t\t\t\t\t\tthis._resume();\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t},\n\t\t\t\t\t\t\tgetInt64(sp + 8),\n\t\t\t\t\t\t));\n\t\t\t\t\t\tthis.mem.setInt32(sp + 16, id, true);\n\t\t\t\t\t},\n\n\t\t\t\t\t// func clearTimeoutEvent(id int32)\n\t\t\t\t\t\"runtime.clearTimeoutEvent\": (sp) => {\n\t\t\t\t\t\tsp >>>= 0;\n\t\t\t\t\t\tconst id = this.mem.getInt32(sp + 8, true);\n\t\t\t\t\t\tclearTimeout(this._scheduledTimeouts.get(id));\n\t\t\t\t\t\tthis._scheduledTimeouts.delete(id);\n\t\t\t\t\t},\n\n\t\t\t\t\t// func getRandomData(r []byte)\n\t\t\t\t\t\"runtime.getRandomData\": (sp) => {\n\t\t\t\t\t\tsp >>>= 0;\n\t\t\t\t\t\tcrypto.getRandomValues(loadSlice(sp + 8));\n\t\t\t\t\t},\n\n\t\t\t\t\t// func finalizeRef(v ref)\n\t\t\t\t\t\"syscall/js.finalizeRef\": (sp) => {\n\t\t\t\t\t\tsp >>>= 0;\n\t\t\t\t\t\tconst id = this.mem.getUint32(sp + 8, true);\n\t\t\t\t\t\tthis._goRefCounts[id]--;\n\t\t\t\t\t\tif (this._goRefCounts[id] === 0) {\n\t\t\t\t\t\t\tconst v = this._values[id];\n\t\t\t\t\t\t\tthis._values[id] = null;\n\t\t\t\t\t\t\tthis._ids.delete(v);\n\t\t\t\t\t\t\tthis._idPool.push(id);\n\t\t\t\t\t\t}\n\t\t\t\t\t},\n\n\t\t\t\t\t// func stringVal(value string) ref\n\t\t\t\t\t\"syscall/js.stringVal\": (sp) => {\n\t\t\t\t\t\tsp >>>= 0;\n\t\t\t\t\t\tstoreValue(sp + 24, loadString(sp + 8));\n\t\t\t\t\t},\n\n\t\t\t\t\t// func valueGet(v ref, p string) ref\n\t\t\t\t\t\"syscall/js.valueGet\": (sp) => {\n\t\t\t\t\t\tsp >>>= 0;\n\t\t\t\t\t\tconst result = Reflect.get(loadValue(sp + 8), loadString(sp + 16));\n\t\t\t\t\t\tsp = this._inst.exports.getsp() >>> 0; // see comment above\n\t\t\t\t\t\tstoreValue(sp + 32, result);\n\t\t\t\t\t},\n\n\t\t\t\t\t// func valueSet(v ref, p string, x ref)\n\t\t\t\t\t\"syscall/js.valueSet\": (sp) => {\n\t\t\t\t\t\tsp >>>= 0;\n\t\t\t\t\t\tReflect.set(loadValue(sp + 8), loadString(sp + 16), loadValue(sp + 32));\n\t\t\t\t\t},\n\n\t\t\t\t\t// func valueDelete(v ref, p string)\n\t\t\t\t\t\"syscall/js.valueDelete\": (sp) => {\n\t\t\t\t\t\tsp >>>= 0;\n\t\t\t\t\t\tReflect.deleteProperty(loadValue(sp + 8), loadString(sp + 16));\n\t\t\t\t\t},\n\n\t\t\t\t\t// func valueIndex(v ref, i int) ref\n\t\t\t\t\t\"syscall/js.valueIndex\": (sp) => {\n\t\t\t\t\t\tsp >>>= 0;\n\t\t\t\t\t\tstoreValue(sp + 24, Reflect.get(loadValue(sp + 8), getInt64(sp + 16)));\n\t\t\t\t\t},\n\n\t\t\t\t\t// valueSetIndex(v ref, i int, x ref)\n\t\t\t\t\t\"syscall/js.valueSetIndex\": (sp) => {\n\t\t\t\t\t\tsp >>>= 0;\n\t\t\t\t\t\tReflect.set(loadValue(sp + 8), getInt64(sp + 16), loadValue(sp + 24));\n\t\t\t\t\t},\n\n\t\t\t\t\t// func valueCall(v ref, m string, args []ref) (ref, bool)\n\t\t\t\t\t\"syscall/js.valueCall\": (sp) => {\n\t\t\t\t\t\tsp >>>= 0;\n\t\t\t\t\t\ttry {\n\t\t\t\t\t\t\tconst v = loadValue(sp + 8);\n\t\t\t\t\t\t\tconst m = Reflect.get(v, loadString(sp + 16));\n\t\t\t\t\t\t\tconst args = loadSliceOfValues(sp + 32);\n\t\t\t\t\t\t\tconst result = Reflect.apply(m, v, args);\n\t\t\t\t\t\t\tsp = this._inst.exports.getsp() >>> 0; // see comment above\n\t\t\t\t\t\t\tstoreValue(sp + 56, result);\n\t\t\t\t\t\t\tthis.mem.setUint8(sp + 64, 1);\n\t\t\t\t\t\t} catch (err) {\n\t\t\t\t\t\t\tsp = this._inst.exports.getsp() >>> 0; // see comment above\n\t\t\t\t\t\t\tstoreValue(sp + 56, err);\n\t\t\t\t\t\t\tthis.mem.setUint8(sp + 64, 0);\n\t\t\t\t\t\t}\n\t\t\t\t\t},\n\n\t\t\t\t\t// func valueInvoke(v ref, args []ref) (ref, bool)\n\t\t\t\t\t\"syscall/js.valueInvoke\": (sp) => {\n\t\t\t\t\t\tsp >>>= 0;\n\t\t\t\t\t\ttry {\n\t\t\t\t\t\t\tconst v = loadValue(sp + 8);\n\t\t\t\t\t\t\tconst args = loadSliceOfValues(sp + 16);\n\t\t\t\t\t\t\tconst result = Reflect.apply(v, undefined, args);\n\t\t\t\t\t\t\tsp = this._inst.exports.getsp() >>> 0; // see comment above\n\t\t\t\t\t\t\tstoreValue(sp + 40, result);\n\t\t\t\t\t\t\tthis.mem.setUint8(sp + 48, 1);\n\t\t\t\t\t\t} catch (err) {\n\t\t\t\t\t\t\tsp = this._inst.exports.getsp() >>> 0; // see comment above\n\t\t\t\t\t\t\tstoreValue(sp + 40, err);\n\t\t\t\t\t\t\tthis.mem.setUint8(sp + 48, 0);\n\t\t\t\t\t\t}\n\t\t\t\t\t},\n\n\t\t\t\t\t// func valueNew(v ref, args []ref) (ref, bool)\n\t\t\t\t\t\"syscall/js.valueNew\": (sp) => {\n\t\t\t\t\t\tsp >>>= 0;\n\t\t\t\t\t\ttry {\n\t\t\t\t\t\t\tconst v = loadValue(sp + 8);\n\t\t\t\t\t\t\tconst args = loadSliceOfValues(sp + 16);\n\t\t\t\t\t\t\tconst result = Reflect.construct(v, args);\n\t\t\t\t\t\t\tsp = this._inst.exports.getsp() >>> 0; // see comment above\n\t\t\t\t\t\t\tstoreValue(sp + 40, result);\n\t\t\t\t\t\t\tthis.mem.setUint8(sp + 48, 1);\n\t\t\t\t\t\t} catch (err) {\n\t\t\t\t\t\t\tsp = this._inst.exports.getsp() >>> 0; // see comment above\n\t\t\t\t\t\t\tstoreValue(sp + 40, err);\n\t\t\t\t\t\t\tthis.mem.setUint8(sp + 48, 0);\n\t\t\t\t\t\t}\n\t\t\t\t\t},\n\n\t\t\t\t\t// func valueLength(v ref) int\n\t\t\t\t\t\"syscall/js.valueLength\": (sp) => {\n\t\t\t\t\t\tsp >>>= 0;\n\t\t\t\t\t\tsetInt64(sp + 16, parseInt(loadValue(sp + 8).length));\n\t\t\t\t\t},\n\n\t\t\t\t\t// valuePrepareString(v ref) (ref, int)\n\t\t\t\t\t\"syscall/js.valuePrepareString\": (sp) => {\n\t\t\t\t\t\tsp >>>= 0;\n\t\t\t\t\t\tconst str = encoder.encode(String(loadValue(sp + 8)));\n\t\t\t\t\t\tstoreValue(sp + 16, str);\n\t\t\t\t\t\tsetInt64(sp + 24, str.length);\n\t\t\t\t\t},\n\n\t\t\t\t\t// valueLoadString(v ref, b []byte)\n\t\t\t\t\t\"syscall/js.valueLoadString\": (sp) => {\n\t\t\t\t\t\tsp >>>= 0;\n\t\t\t\t\t\tconst str = loadValue(sp + 8);\n\t\t\t\t\t\tloadSlice(sp + 16).set(str);\n\t\t\t\t\t},\n\n\t\t\t\t\t// func valueInstanceOf(v ref, t ref) bool\n\t\t\t\t\t\"syscall/js.valueInstanceOf\": (sp) => {\n\t\t\t\t\t\tsp >>>= 0;\n\t\t\t\t\t\tthis.mem.setUint8(sp + 24, (loadValue(sp + 8) instanceof loadValue(sp + 16)) ? 1 : 0);\n\t\t\t\t\t},\n\n\t\t\t\t\t// func copyBytesToGo(dst []byte, src ref) (int, bool)\n\t\t\t\t\t\"syscall/js.copyBytesToGo\": (sp) => {\n\t\t\t\t\t\tsp >>>= 0;\n\t\t\t\t\t\tconst dst = loadSlice(sp + 8);\n\t\t\t\t\t\tconst src = loadValue(sp + 32);\n\t\t\t\t\t\tif (!(src instanceof Uint8Array || src instanceof Uint8ClampedArray)) {\n\t\t\t\t\t\t\tthis.mem.setUint8(sp + 48, 0);\n\t\t\t\t\t\t\treturn;\n\t\t\t\t\t\t}\n\t\t\t\t\t\tconst toCopy = src.subarray(0, dst.length);\n\t\t\t\t\t\tdst.set(toCopy);\n\t\t\t\t\t\tsetInt64(sp + 40, toCopy.length);\n\t\t\t\t\t\tthis.mem.setUint8(sp + 48, 1);\n\t\t\t\t\t},\n\n\t\t\t\t\t// func copyBytesToJS(dst ref, src []byte) (int, bool)\n\t\t\t\t\t\"syscall/js.copyBytesToJS\": (sp) => {\n\t\t\t\t\t\tsp >>>= 0;\n\t\t\t\t\t\tconst dst = loadValue(sp + 8);\n\t\t\t\t\t\tconst src = loadSlice(sp + 16);\n\t\t\t\t\t\tif (!(dst instanceof Uint8Array || dst instanceof Uint8ClampedArray)) {\n\t\t\t\t\t\t\tthis.mem.setUint8(sp + 48, 0);\n\t\t\t\t\t\t\treturn;\n\t\t\t\t\t\t}\n\t\t\t\t\t\tconst toCopy = src.subarray(0, dst.length);\n\t\t\t\t\t\tdst.set(toCopy);\n\t\t\t\t\t\tsetInt64(sp + 40, toCopy.length);\n\t\t\t\t\t\tthis.mem.setUint8(sp + 48, 1);\n\t\t\t\t\t},\n\n\t\t\t\t\t\"debug\": (value) => {\n\t\t\t\t\t\tconsole.log(value);\n\t\t\t\t\t},\n\t\t\t\t}\n\t\t\t};\n\t\t}\n\n\t\tasync run(instance) {\n\t\t\tif (!(instance instanceof WebAssembly.Instance)) {\n\t\t\t\tthrow new Error(\"Go.run: WebAssembly.Instance expected\");\n\t\t\t}\n\t\t\tthis._inst = instance;\n\t\t\tthis.mem = new DataView(this._inst.exports.mem.buffer);\n\t\t\tthis._values = [ // JS values that Go currently has references to, indexed by reference id\n\t\t\t\tNaN,\n\t\t\t\t0,\n\t\t\t\tnull,\n\t\t\t\ttrue,\n\t\t\t\tfalse,\n\t\t\t\tglobalThis,\n\t\t\t\tthis,\n\t\t\t];\n\t\t\tthis._goRefCounts = new Array(this._values.length).fill(Infinity); // number of references that Go has to a JS value, indexed by reference id\n\t\t\tthis._ids = new Map([ // mapping from JS values to reference ids\n\t\t\t\t[0, 1],\n\t\t\t\t[null, 2],\n\t\t\t\t[true, 3],\n\t\t\t\t[false, 4],\n\t\t\t\t[globalThis, 5],\n\t\t\t\t[this, 6],\n\t\t\t]);\n\t\t\tthis._idPool = [];   // unused ids that have been garbage collected\n\t\t\tthis.exited = false; // whether the Go program has exited\n\n\t\t\t// Pass command line arguments and environment variables to WebAssembly by writing them to the linear memory.\n\t\t\tlet offset = 4096;\n\n\t\t\tconst strPtr = (str) => {\n\t\t\t\tconst ptr = offset;\n\t\t\t\tconst bytes = encoder.encode(str + \"\\0\");\n\t\t\t\tnew Uint8Array(this.mem.buffer, offset, bytes.length).set(bytes);\n\t\t\t\toffset += bytes.length;\n\t\t\t\tif (offset % 8 !== 0) {\n\t\t\t\t\toffset += 8 - (offset % 8);\n\t\t\t\t}\n\t\t\t\treturn ptr;\n\t\t\t};\n\n\t\t\tconst argc = this.argv.length;\n\n\t\t\tconst argvPtrs = [];\n\t\t\tthis.argv.forEach((arg) => {\n\t\t\t\targvPtrs.push(strPtr(arg));\n\t\t\t});\n\t\t\targvPtrs.push(0);\n\n\t\t\tconst keys = Object.keys(this.env).sort();\n\t\t\tkeys.forEach((key) => {\n\t\t\t\targvPtrs.push(strPtr(`${key}=${this.env[key]}`));\n\t\t\t});\n\t\t\targvPtrs.push(0);\n\n\t\t\tconst argv = offset;\n\t\t\targvPtrs.forEach((ptr) => {\n\t\t\t\tthis.mem.setUint32(offset, ptr, true);\n\t\t\t\tthis.mem.setUint32(offset + 4, 0, true);\n\t\t\t\toffset += 8;\n\t\t\t});\n\n\t\t\t// The linker guarantees global data starts from at least wasmMinDataAddr.\n\t\t\t// Keep in sync with cmd/link/internal/ld/data.go:wasmMinDataAddr.\n\t\t\tconst wasmMinDataAddr = 4096 + 8192;\n\t\t\tif (offset >= wasmMinDataAddr) {\n\t\t\t\tthrow new Error(\"total length of command line and environment variables exceeds limit\");\n\t\t\t}\n\n\t\t\tthis._inst.exports.run(argc, argv);\n\t\t\tif (this.exited) {\n\t\t\t\tthis._resolveExitPromise();\n\t\t\t}\n\t\t\tawait this._exitPromise;\n\t\t}\n\n\t\t_resume() {\n\t\t\tif (this.exited) {\n\t\t\t\tthrow new Error(\"Go program has already exited\");\n\t\t\t}\n\t\t\tthis._inst.exports.resume();\n\t\t\tif (this.exited) {\n\t\t\t\tthis._resolveExitPromise();\n\t\t\t}\n\t\t}\n\n\t\t_makeFuncWrapper(id) {\n\t\t\tconst go = this;\n\t\t\treturn function () {\n\t\t\t\tconst event = { id: id, this: this, args: arguments };\n\t\t\t\tgo._pendingEvent = event;\n\t\t\t\tgo._resume();\n\t\t\t\treturn event.result;\n\t\t\t};\n\t\t}\n\t}\n})();\n"
 
-	appJS = "// -----------------------------------------------------------------------------\n// go-app\n// -----------------------------------------------------------------------------\nvar goappNav = function () {};\n\nvar goappUpdatedBeforeWasmLoaded = false;\nvar goappOnUpdate = function () {\n  goappUpdatedBeforeWasmLoaded = true;\n};\n\nvar goappAppInstallChangedBeforeWasmLoaded = false;\nvar goappOnAppInstallChange = function () {\n  goappAppInstallChangedBeforeWasmLoaded = true;\n};\n\nconst goappEnv = {{.Env}};\nconst goappLoadingLabel = \"{{.LoadingLabel}}\";\nconst goappWasmContentLength = \"{{.WasmContentLength}}\";\nconst goappWasmContentLengthHeader = \"{{.WasmContentLengthHeader}}\";\n\nlet goappServiceWorkerRegistration;\nlet deferredPrompt = null;\n\ngoappInitServiceWorker();\ngoappWatchForUpdate();\ngoappWatchForInstallable();\ngoappInitWebAssembly();\n\n// -----------------------------------------------------------------------------\n// Service Worker\n// -----------------------------------------------------------------------------\nasync function goappInitServiceWorker() {\n  if (\"serviceWorker\" in navigator) {\n    window.addEventListener(\"load\", async () => {\n      try {\n        const registration = await navigator.serviceWorker.register(\n          \"{{.WorkerJS}}\"\n        );\n        goappServiceWorkerRegistration = registration;\n        goappSetupNotifyUpdate(registration);\n        goappSetupPushNotification();\n      } catch (err) {\n        console.error(\"goapp service worker registration failed: \", err);\n      }\n    });\n  }\n}\n\n// -----------------------------------------------------------------------------\n// Update\n// -----------------------------------------------------------------------------\nfunction goappWatchForUpdate() {\n  window.addEventListener(\"beforeinstallprompt\", (e) => {\n    e.preventDefault();\n    deferredPrompt = e;\n    goappOnAppInstallChange();\n  });\n}\n\nfunction goappSetupNotifyUpdate(registration) {\n  registration.addEventListener(\"updatefound\", (event) => {\n    const newSW = registration.installing;\n    newSW.addEventListener(\"statechange\", (event) => {\n      if (!navigator.serviceWorker.controller) {\n        return;\n      }\n      if (newSW.state != \"activated\") {\n        return;\n      }\n      goappOnUpdate();\n    });\n  });\n}\n\nfunction goappTryUpdate() {\n  if (!goappServiceWorkerRegistration) {\n    return;\n  }\n  goappServiceWorkerRegistration.update();\n}\n\n// -----------------------------------------------------------------------------\n// Install\n// -----------------------------------------------------------------------------\nfunction goappWatchForInstallable() {\n  window.addEventListener(\"appinstalled\", () => {\n    deferredPrompt = null;\n    goappOnAppInstallChange();\n  });\n}\n\nfunction goappIsAppInstallable() {\n  return !goappIsAppInstalled() && deferredPrompt != null;\n}\n\nfunction goappIsAppInstalled() {\n  const isStandalone = window.matchMedia(\"(display-mode: standalone)\").matches;\n  return isStandalone || navigator.standalone;\n}\n\nasync function goappShowInstallPrompt() {\n  deferredPrompt.prompt();\n  await deferredPrompt.userChoice;\n  deferredPrompt = null;\n}\n\n// -----------------------------------------------------------------------------\n// Environment\n// -----------------------------------------------------------------------------\nfunction goappGetenv(k) {\n  return goappEnv[k];\n}\n\n// -----------------------------------------------------------------------------\n// Notifications\n// -----------------------------------------------------------------------------\nfunction goappSetupPushNotification() {\n  navigator.serviceWorker.addEventListener(\"message\", (event) => {\n    const msg = event.data.goapp;\n    if (!msg) {\n      return;\n    }\n\n    if (msg.type !== \"notification\") {\n      return;\n    }\n\n    goappNav(msg.path);\n  });\n}\n\nasync function goappSubscribePushNotifications(vapIDpublicKey) {\n  try {\n    const subscription =\n      await goappServiceWorkerRegistration.pushManager.subscribe({\n        userVisibleOnly: true,\n        applicationServerKey: vapIDpublicKey,\n      });\n    return JSON.stringify(subscription);\n  } catch (err) {\n    console.error(err);\n    return \"\";\n  }\n}\n\nfunction goappNewNotification(jsonNotification) {\n  let notification = JSON.parse(jsonNotification);\n\n  const title = notification.title;\n  delete notification.title;\n\n  let path = notification.path;\n  if (!path) {\n    path = \"/\";\n  }\n\n  const webNotification = new Notification(title, notification);\n\n  webNotification.onclick = () => {\n    goappNav(path);\n    webNotification.close();\n  };\n}\n\n// -----------------------------------------------------------------------------\n// Keep Clean Body\n// -----------------------------------------------------------------------------\nfunction goappKeepBodyClean() {\n  const body = document.body;\n  const bodyChildrenCount = body.children.length;\n\n  const mutationObserver = new MutationObserver(function (mutationList) {\n    mutationList.forEach((mutation) => {\n      switch (mutation.type) {\n        case \"childList\":\n          while (body.children.length > bodyChildrenCount) {\n            body.removeChild(body.lastChild);\n          }\n          break;\n      }\n    });\n  });\n\n  mutationObserver.observe(document.body, {\n    childList: true,\n  });\n\n  return () => mutationObserver.disconnect();\n}\n\n// -----------------------------------------------------------------------------\n// Web Assembly\n// -----------------------------------------------------------------------------\nasync function goappInitWebAssembly() {\n  const loader = document.getElementById(\"app-wasm-loader\");\n\n  if (!goappCanLoadWebAssembly()) {\n    loader.remove();\n    return;\n  }\n\n  let instantiateStreaming = WebAssembly.instantiateStreaming;\n  if (!instantiateStreaming) {\n    instantiateStreaming = async (resp, importObject) => {\n      const source = await (await resp).arrayBuffer();\n      return await WebAssembly.instantiate(source, importObject);\n    };\n  }\n\n  const loaderIcon = document.getElementById(\"app-wasm-loader-icon\");\n  const loaderLabel = document.getElementById(\"app-wasm-loader-label\");\n\n  try {\n    const showProgress = (progress) => {\n      loaderLabel.innerText = goappLoadingLabel.replace(\"{progress}\", progress);\n    };\n    showProgress(0);\n\n    const go = new Go();\n    const wasm = await instantiateStreaming(\n      fetchWithProgress(\"{{.Wasm}}\", showProgress),\n      go.importObject\n    );\n\n    go.run(wasm.instance);\n    loader.remove();\n  } catch (err) {\n    loaderIcon.className = \"goapp-logo\";\n    loaderLabel.innerText = err;\n    console.error(\"loading wasm failed: \", err);\n  }\n}\n\nfunction goappCanLoadWebAssembly() {\n  if (\n    /bot|googlebot|crawler|spider|robot|crawling/i.test(navigator.userAgent)\n  ) {\n    return false;\n  }\n\n  const urlParams = new URLSearchParams(window.location.search);\n  return urlParams.get(\"wasm\") !== \"false\";\n}\n\nasync function fetchWithProgress(url, progess) {\n  const response = await fetch(url);\n\n  let contentLength = goappWasmContentLength;\n  if (contentLength <= 0) {\n    try {\n      contentLength = response.headers.get(goappWasmContentLengthHeader);\n    } catch {}\n    if (!goappWasmContentLengthHeader || !contentLength) {\n      contentLength = response.headers.get(\"Content-Length\");\n    }\n  }\n\n  const total = parseInt(contentLength, 10);\n  let loaded = 0;\n\n  const progressHandler = function (loaded, total) {\n    progess(Math.round((loaded * 100) / total));\n  };\n\n  var res = new Response(\n    new ReadableStream(\n      {\n        async start(controller) {\n          var reader = response.body.getReader();\n          for (;;) {\n            var { done, value } = await reader.read();\n\n            if (done) {\n              progressHandler(total, total);\n              break;\n            }\n\n            loaded += value.byteLength;\n            progressHandler(loaded, total);\n            controller.enqueue(value);\n          }\n          controller.close();\n        },\n      },\n      {\n        status: response.status,\n        statusText: response.statusText,\n      }\n    )\n  );\n\n  for (var pair of response.headers.entries()) {\n    res.headers.set(pair[0], pair[1]);\n  }\n\n  return res;\n}\n"
+	appJS = "// -----------------------------------------------------------------------------\n// go-app\n// -----------------------------------------------------------------------------\nvar goappNav = function () {};\n\nvar goappUpdatedBeforeWasmLoaded = false;\nvar goappOnUpdate = function () {\n  goappUpdatedBeforeWasmLoaded = true;\n};\n\nvar goappAppInstallChangedBeforeWasmLoaded = false;\nvar goappOnAppInstallChange = function () {\n  goappAppInstallChangedBeforeWasmLoaded = true;\n};\n\nconst goappEnv = {{.Env}};\nconst goappLoadingLabel = \"{{.LoadingLabel}}\";\nconst goappWasmContentLength = \"{{.WasmContentLength}}\";\nconst goappWasmContentLengthHeader = \"{{.WasmContentLengthHeader}}\";\n\nlet goappServiceWorkerRegistration;\nlet deferredPrompt = null;\n\ngoappInitServiceWorker();\ngoappWatchForUpdate();\ngoappWatchForInstallable();\ngoappInitWebAssembly();\n\n// -----------------------------------------------------------------------------\n// Service Worker\n// -----------------------------------------------------------------------------\nasync function goappInitServiceWorker() {\n  if (\"serviceWorker\" in navigator) {\n    try {\n      const registration = await navigator.serviceWorker.register(\n        \"{{.WorkerJS}}\"\n      );\n      goappServiceWorkerRegistration = registration;\n      goappSetupNotifyUpdate(registration);\n      goappSetupPushNotification();\n    } catch (err) {\n      console.error(\"goapp service worker registration failed: \", err);\n    }\n  }\n}\n\n// -----------------------------------------------------------------------------\n// Update\n// -----------------------------------------------------------------------------\nfunction goappWatchForUpdate() {\n  window.addEventListener(\"beforeinstallprompt\", (e) => {\n    e.preventDefault();\n    deferredPrompt = e;\n    goappOnAppInstallChange();\n  });\n}\n\nfunction goappSetupNotifyUpdate(registration) {\n  registration.addEventListener(\"updatefound\", (event) => {\n    const newSW = registration.installing;\n    newSW.addEventListener(\"statechange\", (event) => {\n      if (!navigator.serviceWorker.controller) {\n        return;\n      }\n\n      switch (newSW.state) {\n        case \"installed\":\n          goappOnUpdate();\n      }\n    });\n  });\n}\n\nfunction goappTryUpdate() {\n  if (!goappServiceWorkerRegistration) {\n    return;\n  }\n  goappServiceWorkerRegistration.update();\n}\n\n// -----------------------------------------------------------------------------\n// Install\n// -----------------------------------------------------------------------------\nfunction goappWatchForInstallable() {\n  window.addEventListener(\"appinstalled\", () => {\n    deferredPrompt = null;\n    goappOnAppInstallChange();\n  });\n}\n\nfunction goappIsAppInstallable() {\n  return !goappIsAppInstalled() && deferredPrompt != null;\n}\n\nfunction goappIsAppInstalled() {\n  const isStandalone = window.matchMedia(\"(display-mode: standalone)\").matches;\n  return isStandalone || navigator.standalone;\n}\n\nasync function goappShowInstallPrompt() {\n  deferredPrompt.prompt();\n  await deferredPrompt.userChoice;\n  deferredPrompt = null;\n}\n\n// -----------------------------------------------------------------------------\n// Environment\n// -----------------------------------------------------------------------------\nfunction goappGetenv(k) {\n  return goappEnv[k];\n}\n\n// -----------------------------------------------------------------------------\n// Notifications\n// -----------------------------------------------------------------------------\nfunction goappSetupPushNotification() {\n  navigator.serviceWorker.addEventListener(\"message\", (event) => {\n    const msg = event.data.goapp;\n    if (!msg) {\n      return;\n    }\n\n    if (msg.type !== \"notification\") {\n      return;\n    }\n\n    goappNav(msg.path);\n  });\n}\n\nasync function goappSubscribePushNotifications(vapIDpublicKey) {\n  try {\n    const subscription =\n      await goappServiceWorkerRegistration.pushManager.subscribe({\n        userVisibleOnly: true,\n        applicationServerKey: vapIDpublicKey,\n      });\n    return JSON.stringify(subscription);\n  } catch (err) {\n    console.error(err);\n    return \"\";\n  }\n}\n\nfunction goappNewNotification(jsonNotification) {\n  let notification = JSON.parse(jsonNotification);\n\n  const title = notification.title;\n  delete notification.title;\n\n  let path = notification.path;\n  if (!path) {\n    path = \"/\";\n  }\n\n  const webNotification = new Notification(title, notification);\n\n  webNotification.onclick = () => {\n    goappNav(path);\n    webNotification.close();\n  };\n}\n\n// -----------------------------------------------------------------------------\n// Keep Clean Body\n// -----------------------------------------------------------------------------\nfunction goappKeepBodyClean() {\n  const body = document.body;\n  const bodyChildrenCount = body.children.length;\n\n  const mutationObserver = new MutationObserver(function (mutationList) {\n    mutationList.forEach((mutation) => {\n      switch (mutation.type) {\n        case \"childList\":\n          while (body.children.length > bodyChildrenCount) {\n            body.removeChild(body.lastChild);\n          }\n          break;\n      }\n    });\n  });\n\n  mutationObserver.observe(document.body, {\n    childList: true,\n  });\n\n  return () => mutationObserver.disconnect();\n}\n\n// -----------------------------------------------------------------------------\n// Web Assembly\n// -----------------------------------------------------------------------------\nasync function goappInitWebAssembly() {\n  const loader = document.getElementById(\"app-wasm-loader\");\n\n  if (!goappCanLoadWebAssembly()) {\n    loader.remove();\n    return;\n  }\n\n  let instantiateStreaming = WebAssembly.instantiateStreaming;\n  if (!instantiateStreaming) {\n    instantiateStreaming = async (resp, importObject) => {\n      const source = await (await resp).arrayBuffer();\n      return await WebAssembly.instantiate(source, importObject);\n    };\n  }\n\n  const loaderIcon = document.getElementById(\"app-wasm-loader-icon\");\n  const loaderLabel = document.getElementById(\"app-wasm-loader-label\");\n\n  try {\n    const showProgress = (progress) => {\n      loaderLabel.innerText = goappLoadingLabel.replace(\"{progress}\", progress);\n    };\n    showProgress(0);\n\n    const go = new Go();\n    const wasm = await instantiateStreaming(\n      fetchWithProgress(\"{{.Wasm}}\", showProgress),\n      go.importObject\n    );\n\n    go.run(wasm.instance);\n    loader.remove();\n  } catch (err) {\n    loaderIcon.className = \"goapp-logo\";\n    loaderLabel.innerText = err;\n    console.error(\"loading wasm failed: \", err);\n  }\n}\n\nfunction goappCanLoadWebAssembly() {\n  if (\n    /bot|googlebot|crawler|spider|robot|crawling/i.test(navigator.userAgent)\n  ) {\n    return false;\n  }\n\n  const urlParams = new URLSearchParams(window.location.search);\n  return urlParams.get(\"wasm\") !== \"false\";\n}\n\nasync function fetchWithProgress(url, progess) {\n  const response = await fetch(url);\n\n  let contentLength = goappWasmContentLength;\n  if (contentLength <= 0) {\n    try {\n      contentLength = response.headers.get(goappWasmContentLengthHeader);\n    } catch {}\n    if (!goappWasmContentLengthHeader || !contentLength) {\n      contentLength = response.headers.get(\"Content-Length\");\n    }\n  }\n\n  const total = parseInt(contentLength, 10);\n  let loaded = 0;\n\n  const progressHandler = function (loaded, total) {\n    progess(Math.round((loaded * 100) / total));\n  };\n\n  var res = new Response(\n    new ReadableStream(\n      {\n        async start(controller) {\n          var reader = response.body.getReader();\n          for (;;) {\n            var { done, value } = await reader.read();\n\n            if (done) {\n              progressHandler(total, total);\n              break;\n            }\n\n            loaded += value.byteLength;\n            progressHandler(loaded, total);\n            controller.enqueue(value);\n          }\n          controller.close();\n        },\n      },\n      {\n        status: response.status,\n        statusText: response.statusText,\n      }\n    )\n  );\n\n  for (var pair of response.headers.entries()) {\n    res.headers.set(pair[0], pair[1]);\n  }\n\n  return res;\n}\n"
 
 	manifestJSON = "{\n  \"short_name\": \"{{.ShortName}}\",\n  \"name\": \"{{.Name}}\",\n  \"description\": \"{{.Description}}\",\n  \"icons\": [\n    {\n      \"src\": \"{{.SVGIcon}}\",\n      \"type\": \"image/svg+xml\",\n      \"sizes\": \"any\"\n    },\n    {\n      \"src\": \"{{.LargeIcon}}\",\n      \"type\": \"image/png\",\n      \"sizes\": \"512x512\"\n    },\n    {\n      \"src\": \"{{.DefaultIcon}}\",\n      \"type\": \"image/png\",\n      \"sizes\": \"192x192\"\n    },\n    {\n      \"src\": \"{{.MaskableIcon}}\",\n      \"type\": \"image/png\",\n      \"purpose\": \"maskable\",\n      \"sizes\": \"192x192\"\n    }\n  ],\n  \"scope\": \"{{.Scope}}\",\n  \"start_url\": \"{{.StartURL}}\",\n  \"background_color\": \"{{.BackgroundColor}}\",\n  \"theme_color\": \"{{.ThemeColor}}\",\n  \"display\": \"standalone\"\n}"
 
