<!DOCTYPE html> <html lang="ja" dir="ltr"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width,initial-scale=1"> <title>PWAテスト</title> <link rel="stylesheet" href="sample.css"> <script type="text/javascript" src="./sample.js"></script> <link rel="manifest" href="./manifest.json"> </head> <body> <input type="text" name="name" id="name"> <input type="submit" value="送信" onclick="gettext()"> <p id="text"> 名前を入力してください。</p> <script type="application/javascript"> if ('serviceWorker' in navigator) { navigator.serviceWorker .register('./serviceworker.js') .then(function() { console.log('service worker registered'); }); } </script> </body> </html>