iPhone Web App禁用缓存

<meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate" />
<meta http-equiv="Pragma" content="no-cache" />
<meta http-equiv="Expires" content="0" />

window.onload = function() {
  setTimeout(function() {
    window.location.reload(true);
  }, 1000);
}