Rollup build

src/client/initial-app/index.tsx

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+/**
+ * Copyright 2020 Google Inc. All Rights Reserved.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import { h, render } from 'preact';
+import App from './App';
+
+const root = document.getElementById('app') as HTMLElement;
+
+async function main() {
+  if (!__PRODUCTION__) await import('preact/debug');
+  render(<App />, root);
+}
+
+main();
+
+// Analytics
+{
+  // Determine the current display mode.
+  const displayMode =
+    navigator.standalone ||
+    window.matchMedia('(display-mode: standalone)').matches
+      ? 'standalone'
+      : 'browser';
+
+  // Setup analytics
+  window.ga = window.ga || ((...args) => (ga.q = ga.q || []).push(args));
+  ga('create', 'UA-128752250-1', 'auto');
+  ga('set', 'transport', 'beacon');
+  ga('set', 'dimension1', displayMode);
+  ga('send', 'pageview', '/index.html', { title: 'Squoosh' });
+  // Load the GA script
+  const script = document.createElement('script');
+  script.src = 'https://www.google-analytics.com/analytics.js';
+  document.head.appendChild(script);
+}