diff --git a/.gitignore b/.gitignore
index bf8e112b..98edd66e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -27,3 +27,4 @@ storage/options.php
 .php_cs.cache
 resources/views/overrides
 public/sw.js
+public/meta.js
diff --git a/app/Http/View/Composers/HeadComposer.php b/app/Http/View/Composers/HeadComposer.php
index 43479552..1d3724e9 100644
--- a/app/Http/View/Composers/HeadComposer.php
+++ b/app/Http/View/Composers/HeadComposer.php
@@ -43,6 +43,7 @@ class HeadComposer
         $this->seo($view);
         $this->injectStyles($view);
         $this->addExtra($view);
+        $this->serializeGlobals($view);
     }
 
     public function addFavicon(View $view)
@@ -112,7 +113,7 @@ class HeadComposer
             'integrity' => 'sha256-h20CPZ0QyXlBuAw7A+KluUYx/3pK+c7lYEpqLTlxjYQ=',
             'crossorigin' => 'anonymous',
         ];
-        if (!$this->request->is('/')) {
+        if (!$this->request->is('/') && config('app.asset.env') !== 'development') {
             $links[] = [
                 'rel' => 'stylesheet',
                 'href' => $this->webpack->url('style.css'),
@@ -131,4 +132,18 @@ class HeadComposer
         $this->dispatcher->dispatch(new \App\Events\RenderingHeader($content));
         $view->with('extra_head', $content);
     }
+
+    public function serializeGlobals(View $view)
+    {
+        $blessing = [
+            'version' => config('app.version'),
+            'locale' => config('app.locale'),
+            'base_url' => url('/'),
+            'site_name' => option_localized('site_name'),
+            'route' => request()->path(),
+            'i18n' => new \stdClass(),
+            'extra' => [],
+        ];
+        $view->with('blessing', $blessing);
+    }
 }
diff --git a/app/Listeners/SerializeGlobals.php b/app/Listeners/SerializeGlobals.php
deleted file mode 100644
index 318c8fb3..00000000
--- a/app/Listeners/SerializeGlobals.php
+++ /dev/null
@@ -1,22 +0,0 @@
-<?php
-
-namespace App\Listeners;
-
-use stdClass;
-
-class SerializeGlobals
-{
-    public function handle($event)
-    {
-        $blessing = [
-            'version' => config('app.version'),
-            'locale' => config('app.locale'),
-            'base_url' => url('/'),
-            'site_name' => option_localized('site_name'),
-            'route' => request()->path(),
-            'i18n' => new stdClass(),
-            'extra' => [],
-        ];
-        $event->addContent('<script>window.blessing = '.json_encode($blessing).';</script>');
-    }
-}
diff --git a/app/Providers/EventServiceProvider.php b/app/Providers/EventServiceProvider.php
index ce3136db..81f6ecc9 100644
--- a/app/Providers/EventServiceProvider.php
+++ b/app/Providers/EventServiceProvider.php
@@ -20,9 +20,6 @@ class EventServiceProvider extends ServiceProvider
         'App\Events\PluginBootFailed' => [
             Listeners\NotifyFailedPlugin::class,
         ],
-        'App\Events\RenderingHeader' => [
-            Listeners\SerializeGlobals::class,
-        ],
         'auth.registration.completed' => [
             Listeners\SendEmailVerification::class,
         ],
diff --git a/package.json b/package.json
index 1fd5b293..47dbeda2 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,7 @@
   "private": true,
   "scripts": {
     "dev": "webpack-dev-server",
-    "build": "webpack --mode=production -p --progress",
+    "build": "webpack -p --progress && webpack -p --config=webpack.meta.config.js",
     "lint": "eslint --ext=ts -f=beauty .",
     "fmt": "prettier --write resources/assets",
     "test": "jest",
@@ -198,6 +198,7 @@
     "coveragePathIgnorePatterns": [
       "/node_modules/",
       "<rootDir>/resources/assets/src/styles",
+      "<rootDir>/resources/assets/src/scripts/extra.ts",
       "<rootDir>/resources/assets/src/scripts/urls.ts",
       "<rootDir>/resources/assets/tests/setup",
       "<rootDir>/resources/assets/tests/utils",
diff --git a/resources/assets/src/scripts/app.ts b/resources/assets/src/scripts/app.ts
index 1a7714e1..725246ce 100644
--- a/resources/assets/src/scripts/app.ts
+++ b/resources/assets/src/scripts/app.ts
@@ -1,4 +1,5 @@
 import './init' // Must be first
+import './extra'
 import './i18n'
 import './net'
 import './event'
diff --git a/resources/assets/src/scripts/extra.ts b/resources/assets/src/scripts/extra.ts
new file mode 100644
index 00000000..1362bf6d
--- /dev/null
+++ b/resources/assets/src/scripts/extra.ts
@@ -0,0 +1,12 @@
+export function getExtraData(): any {
+  const jsonElement = document.querySelector('#blessing-extra')
+  /* istanbul ignore next */
+  if (jsonElement) {
+    return JSON.parse(jsonElement.textContent ?? '{}')
+  }
+}
+
+const extraData = getExtraData()
+if (extraData) {
+  blessing.extra = extraData
+}
diff --git a/resources/assets/src/scripts/home-page.ts b/resources/assets/src/scripts/home-page.ts
index f860decc..b1d65342 100644
--- a/resources/assets/src/scripts/home-page.ts
+++ b/resources/assets/src/scripts/home-page.ts
@@ -1,4 +1,5 @@
 import '@/styles/home.css'
+import { getExtraData } from './extra'
 
 export function scrollHander() {
   const header = document.querySelector('.navbar')
@@ -28,8 +29,11 @@ export async function logout() {
 }
 
 /* istanbul ignore next */
-if (blessing.extra.transparent_navbar) {
-  window.addEventListener('load', scrollHander)
+if (process.env.NODE_ENV !== 'test') {
+  const { transparent_navbar }: { transparent_navbar: boolean } = getExtraData()
+  if (transparent_navbar) {
+    window.addEventListener('load', scrollHander)
+  }
 }
 /* istanbul ignore next */
 document
diff --git a/resources/assets/src/scripts/meta.ts b/resources/assets/src/scripts/meta.ts
new file mode 100644
index 00000000..126bafae
--- /dev/null
+++ b/resources/assets/src/scripts/meta.ts
@@ -0,0 +1,9 @@
+{
+  const blessingElement = document.querySelector('#blessing-globals')!
+  // @ts-ignore
+  window.blessing = JSON.parse(blessingElement.textContent!)
+
+  window.addEventListener('load', () => {
+    navigator.serviceWorker.register('/sw.js?v4')
+  })
+}
diff --git a/resources/views/admin/customize.twig b/resources/views/admin/customize.twig
index aa366a7c..b51e2bbd 100644
--- a/resources/views/admin/customize.twig
+++ b/resources/views/admin/customize.twig
@@ -71,7 +71,7 @@
 {% endblock %}
 
 {% block before_foot %}
-  <script>
-    blessing.extra = {{ extra|json_encode|raw }}
+  <script id="blessing-extra" type="application/json">
+    {{ extra|json_encode|raw }}
   </script>
 {% endblock %}
diff --git a/resources/views/admin/users.twig b/resources/views/admin/users.twig
index 138dba3f..4f711a51 100644
--- a/resources/views/admin/users.twig
+++ b/resources/views/admin/users.twig
@@ -4,7 +4,7 @@
 
 {% block before_foot %}
   {% set extra = {'currentUser': auth_user()} %}
-  <script>
-    blessing.extra = {{ extra|json_encode|raw }}
+  <script id="blessing-extra" type="application/json">
+    {{ extra|json_encode|raw }}
   </script>
 {% endblock %}
diff --git a/resources/views/auth/forgot.twig b/resources/views/auth/forgot.twig
index 7c5a1dc6..141f2960 100644
--- a/resources/views/auth/forgot.twig
+++ b/resources/views/auth/forgot.twig
@@ -13,10 +13,7 @@
 {% endblock %}
 
 {% block before_foot %}
-  <script>
-    Object.defineProperty(blessing, 'extra', {
-      configurable: false,
-      get: () => Object.freeze({{ extra|json_encode|raw }})
-    })
+  <script id="blessing-extra" type="application/json">
+    {{ extra|json_encode|raw }}
   </script>
 {% endblock %}
diff --git a/resources/views/auth/login.twig b/resources/views/auth/login.twig
index ed44bc0f..a032bbc2 100644
--- a/resources/views/auth/login.twig
+++ b/resources/views/auth/login.twig
@@ -9,10 +9,7 @@
 {% endblock %}
 
 {% block before_foot %}
-  <script>
-    Object.defineProperty(blessing, 'extra', {
-      configurable: false,
-      get: () => Object.freeze({{ extra|json_encode|raw }})
-    })
+  <script id="blessing-extra" type="application/json">
+    {{ extra|json_encode|raw }}
   </script>
 {% endblock %}
diff --git a/resources/views/auth/register.twig b/resources/views/auth/register.twig
index 06d588aa..0fbcc18e 100644
--- a/resources/views/auth/register.twig
+++ b/resources/views/auth/register.twig
@@ -9,10 +9,7 @@
 {% endblock %}
 
 {% block before_foot %}
-  <script>
-    Object.defineProperty(blessing, 'extra', {
-      configurable: false,
-      get: () => Object.freeze({{ extra|json_encode|raw }})
-    })
+  <script id="blessing-extra" type="application/json">
+    {{ extra|json_encode|raw }}
   </script>
 {% endblock %}
diff --git a/resources/views/home.twig b/resources/views/home.twig
index 65c264f0..2dbf11e2 100644
--- a/resources/views/home.twig
+++ b/resources/views/home.twig
@@ -158,8 +158,8 @@
     {% if home_page_css_loader %}
       <script src="{{ home_page_css_loader }}"></script>
     {% endif %}
-    <script>
-      blessing.extra = { transparent_navbar: {{ transparent_navbar ? 'true' : 'false' }} }
+    <script type="application/json" id="blessing-extra">
+      {{ {transparent_navbar: transparent_navbar}|json_encode|raw }}
     </script>
     {{ include('shared.foot') }}
   </body>
diff --git a/resources/views/shared/head.twig b/resources/views/shared/head.twig
index be8e81d0..9c537659 100644
--- a/resources/views/shared/head.twig
+++ b/resources/views/shared/head.twig
@@ -10,11 +10,8 @@
 {% if custom_cdn_host %}
   <link rel="preconnect" href="{{ custom_cdn_host }}" crossorigin>
 {% endif %}
-<script>
-window.addEventListener('load', () => {
-  navigator.serviceWorker.register('/sw.js?v4')
-})
-</script>
+<script id="blessing-globals" type="application/json">{{ blessing|json_encode|raw }}</script>
+<script src="{{ url('/meta.js') }}"></script>
 {% for link in links %}
   <link{% for attribute, value in link %} {{ attribute }}="{{ value|raw }}"{% endfor %}>
 {% endfor %}
diff --git a/resources/views/skinlib/index.twig b/resources/views/skinlib/index.twig
index 1b3366e8..47bc8575 100644
--- a/resources/views/skinlib/index.twig
+++ b/resources/views/skinlib/index.twig
@@ -7,7 +7,7 @@
 {% endblock %}
 
 {% block before_foot %}
-  <script>
-    blessing.extra = {{ {currentUid: auth_user().uid}|json_encode|raw }}
+  <script id="blessing-extra" type="application/json">
+    {{ {currentUid: auth_user().uid}|json_encode|raw }}
   </script>
 {% endblock %}
diff --git a/resources/views/skinlib/show.twig b/resources/views/skinlib/show.twig
index 7e687ede..d468a60a 100644
--- a/resources/views/skinlib/show.twig
+++ b/resources/views/skinlib/show.twig
@@ -30,10 +30,7 @@
 {% endblock %}
 
 {% block before_foot %}
-<script>
-  Object.defineProperty(blessing, 'extra', {
-    configurable: false,
-    get: () => Object.freeze({{ extra|json_encode|raw }})
-  })
-</script>
+  <script id="blessing-extra" type="application/json">
+    {{ extra|json_encode|raw }}
+  </script>
 {% endblock %}
diff --git a/resources/views/skinlib/upload.twig b/resources/views/skinlib/upload.twig
index 9a8fd9b6..813fe27f 100644
--- a/resources/views/skinlib/upload.twig
+++ b/resources/views/skinlib/upload.twig
@@ -27,7 +27,7 @@
 {% endblock %}
 
 {% block before_foot %}
-  <script>
-    blessing.extra = {{ extra|json_encode|raw }}
+  <script id="blessing-extra" type="application/json">
+    {{ extra|json_encode|raw }}
   </script>
 {% endblock %}
diff --git a/resources/views/user/closet.twig b/resources/views/user/closet.twig
index f66d0fca..19dc3b25 100644
--- a/resources/views/user/closet.twig
+++ b/resources/views/user/closet.twig
@@ -9,9 +9,7 @@
 {% endblock %}
 
 {% block before_foot %}
-  <script>
-    Object.defineProperty(blessing, 'extra', {
-      get: () => Object.freeze({{ extra|json_encode|raw }})
-    })
+  <script id="blessing-extra" type="application/json">
+    {{ extra|json_encode|raw }}
   </script>
 {% endblock %}
diff --git a/resources/views/user/index.twig b/resources/views/user/index.twig
index 82856531..a298e435 100644
--- a/resources/views/user/index.twig
+++ b/resources/views/user/index.twig
@@ -36,9 +36,7 @@
 {% endblock %}
 
 {% block before_foot %}
-  <script>
-    Object.defineProperty(blessing, 'extra', {
-      get: () => Object.freeze({{ extra|json_encode|raw }})
-    })
+  <script id="blessing-extra" type="application/json">
+    {{ extra|json_encode|raw }}
   </script>
 {% endblock %}
diff --git a/resources/views/user/player.twig b/resources/views/user/player.twig
index 204d806a..6ed8f4e1 100644
--- a/resources/views/user/player.twig
+++ b/resources/views/user/player.twig
@@ -9,5 +9,7 @@
 {% endblock %}
 
 {% block before_foot %}
-  <script>blessing.extra = {{ extra|json_encode|raw }}</script>
+  <script id="blessing-extra" type="application/json">
+    {{ extra|json_encode|raw }}
+  </script>
 {% endblock %}
diff --git a/scripts/build.ps1 b/scripts/build.ps1
index 82dc800c..83ec8684 100644
--- a/scripts/build.ps1
+++ b/scripts/build.ps1
@@ -12,7 +12,6 @@ if (Test-Path ./public/app) {
 
 # Run webpack
 yarn build
-Move-Item -Path ./public/app/sw.js -Destination ./public -Force
 
 if ($Simple) {
     exit
diff --git a/webpack.config.js b/webpack.config.js
index dee92b24..c20fdd33 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -11,7 +11,6 @@ const config = {
   mode: devMode ? 'development' : 'production',
   entry: {
     app: ['react-hot-loader/patch', '@/index.tsx'],
-    sw: '@/scripts/sw.ts',
     style: ['@/styles/common.css'],
     home: '@/scripts/home-page.ts',
     spectre: [
@@ -22,12 +21,7 @@ const config = {
   },
   output: {
     path: `${__dirname}/public/app`,
-    filename: ({ chunk }) =>
-      chunk.name === 'sw'
-        ? 'sw.js'
-        : devMode
-        ? '[name].js'
-        : '[name].[contenthash:7].js',
+    filename: devMode ? '[name].js' : '[name].[contenthash:7].js',
     chunkFilename: devMode ? '[id].js' : '[id].[contenthash:7].js',
   },
   module: {
diff --git a/webpack.meta.config.js b/webpack.meta.config.js
new file mode 100644
index 00000000..d9696054
--- /dev/null
+++ b/webpack.meta.config.js
@@ -0,0 +1,29 @@
+const devMode = !process.argv.includes('-p')
+
+module.exports = {
+  mode: devMode ? 'development' : 'production',
+  entry: {
+    meta: './resources/assets/src/scripts/meta.ts',
+    sw: './resources/assets/src/scripts/sw.ts',
+  },
+  output: {
+    path: `${__dirname}/public`,
+    filename: '[name].js',
+  },
+  module: {
+    rules: [
+      {
+        test: /\.ts$/,
+        loader: 'ts-loader',
+        options: {
+          configFile: 'tsconfig.build.json',
+          transpileOnly: true,
+        },
+      },
+    ],
+  },
+  resolve: {
+    extensions: ['.js', '.ts', '.tsx', '.json'],
+  },
+  stats: 'errors-only',
+}