Disable caching for HTML pages across all browsers (supposedly).
<html>
<head>
<!-- http://stackoverflow.com/a/1341133 -->
<meta http-equiv="cache-control" content="max-age=0" />
<meta http-equiv="cache-control" content="no-cache" />
<meta http-equiv="expires" content="0" />
<meta http-equiv="expires" content="Tue, 01 Jan 1980 1:00:00 GMT" />
<meta http-equiv="pragma" content="no-cache" />
<title>No cache</title>
</head>
<body>
<p>This page should not be cached, according to its meta tags.</p>
</body>
</html>