<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>SVG requiredExtensions (reference)</title>
</head>
<body>
  <p>Test passes if there is a green square and no red.</p>
  <svg width="200px" height="200px">
    <rect width="200px" height="200px" fill="green"/>
  </svg>
</body>
</html>