pwa-test/index.html at master · t754/pwa-test · GitHub

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<!DOCTYPE html>
<html>
  <head>
    <title>PWA test</title>
    <meta charset="utf-8">
    <meta name="viewport" content="width=360,initial-scale=1">
    <link rel="manifest" href="manifest.json">
    <meta name="application-name" content="Sample" />
  </head>
  <body>
    <script>
      if ( 'serviceWorker' in navigator ) {
        window.addEventListener('load', () => {
          navigator.serviceWorker.register('serviceworker.js').then(function(registration) {
            console.log( 'ServiceWorker registration successful. Scope: ' + registration.scope )
          }).catch(function(err) {
            console.log( 'ServiceWorker registration failed. Error: ' + err);
          });
        });
      }
    </script>
    <textarea id="textarea">test</textarea >
  </body>
</html>