fetch-cache/index.html at master · pivanov/fetch-cache · GitHub

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<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <title>Hello from SashiDo :)</title>
  <style>
    html,
    body {
      margin: 0;
      font-size: 16px;
      line-height: 1;
      color: #c7c8ca;
      font-weight: 300;
      background: #1e2228;
      font-family: sans-serif;
    }

    #content {
      width: 100vw;
      height: 100vh;
      padding: 20px;
    }
  </style>
</head>

<body>
  <div id="content">
    <button id="button" onclick="clickButton()">Try Cached Fetch</button>
    <pre id="pre"></pre>
  </div>

  <script type="text/javascript">
    if ('serviceWorker' in navigator && 'caches' in window) {
      navigator.serviceWorker.register('//pivanov.github.io/fetch-cache/sw.js');
    }

    const clickButton = () => {
      fetch(
          '//pivanov.github.io/fetch-cache/db.json', {
            headers: {
              "SW-Cache-For-Seconds": 5
            },
          })
        .then(r => r.json())
        .then(data => {
          document.getElementById('pre').innerHTML = JSON.stringify(data, null, 2);
        });
    }
  </script>
</body>

</html>