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<!DOCTYPE html><html><head> <!--
If you are serving your web app in a path other than the root, change the href value below to reflect the base path you are serving from.
The path provided below has to start and end with a slash "/" in order for it to work correctly.
For more details: * https://developer.mozilla.org/en-US/docs/Web/HTML/Element/base
This is a placeholder for base href that will be replaced by the value of the `--base-href` argument provided to `flutter build`. --> <base href="$FLUTTER_BASE_HREF">
<meta charset="UTF-8"> <meta content="IE=Edge" http-equiv="X-UA-Compatible"> <meta name="description" content="A new Flutter project.">
<!-- iOS meta tags & icons --> <meta name="apple-mobile-web-app-capable" content="yes"> <meta name="apple-mobile-web-app-status-bar-style" content="black"> <meta name="apple-mobile-web-app-title" content="my_flutter_puzzle"> <link rel="apple-touch-icon" href="icons/Icon-192.png">
<!-- Favicon --> <link rel="icon" type="image/png" href="favicon.png"/>
<title>my_flutter_puzzle</title> <link rel="manifest" href="manifest.json"></head><body> <!-- This script installs service_worker.js to provide PWA functionality to
application. For more information, see: https://developers.google.com/web/fundamentals/primers/service-workers --> <script> var serviceWorkerVersion = null; var scriptLoaded = false; function loadMainDartJs() { if (scriptLoaded) { return; } scriptLoaded = true; var scriptTag = document.createElement('script'); scriptTag.src = 'main.dart.js'; scriptTag.type = 'application/javascript'; document.body.append(scriptTag); }
if ('serviceWorker' in navigator) { // Service workers are supported. Use them. window.addEventListener('load', function () { // Wait for registration to finish before dropping the <script> tag. // Otherwise, the browser will load the script multiple times, // potentially different versions. var serviceWorkerUrl = 'flutter_service_worker.js?v=' + serviceWorkerVersion; navigator.serviceWorker.register(serviceWorkerUrl) .then((reg) => { function waitForActivation(serviceWorker) { serviceWorker.addEventListener('statechange', () => { if (serviceWorker.state == 'activated') { console.log('Installed new service worker.'); loadMainDartJs(); } }); } if (!reg.active && (reg.installing || reg.waiting)) { // No active web worker and we have installed or are installing // one for the first time. Simply wait for it to activate. waitForActivation(reg.installing || reg.waiting); } else if (!reg.active.scriptURL.endsWith(serviceWorkerVersion)) { // When the app updates the serviceWorkerVersion changes, so we // need to ask the service worker to update. console.log('New service worker available.'); reg.update(); waitForActivation(reg.installing); } else { // Existing service worker is still good. console.log('Loading app from service worker.'); loadMainDartJs(); } });
// If service worker doesn't succeed in a reasonable amount of time, // fallback to plaint <script> tag. setTimeout(() => { if (!scriptLoaded) { console.warn( 'Failed to load app from service worker. Falling back to plain <script> tag.', ); loadMainDartJs(); } }, 4000); }); } else { // Service workers not supported. Just drop the <script> tag. loadMainDartJs(); } </script></body></html>
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