packages/diffhtml-middleware-linter/test.html

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">

  <title>Test</title>
</head>
<body>
  <script src="https://diffhtml.org/master/diffhtml/dist/diffhtml.js"></script>
  <script src="dist/linter.js"></script>
  <script>
    diff.use(linter({
      rules: {
        'attr-value-not-empty': true,
        'inline-style-disabled': true,
        'inline-script-disabled': true,
      },

      renderErrors: true,
    }));

    setInterval(() => {
      diff.innerHTML(document.body, `
        <!doctype html>
        <H1>Hello world</H1>
        <span ID="true"></span>
        <video src="" />
        <img disabled="" id="true" />

        <head style="font-weight:bold">
          <script><\/script>
          <tittle onclick="test()"></tittle>
        </head>
      `);
    }, 1000);
  </script>
</body>
</html>