public/500.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>500 Internal Server Error</title>
<style type="text/css">
.section {
margin: 3% 0px;
text-align: center;
}
.section img {
width: 640px;
height: 480px;
border: 0px;
}
.section a {
cursor: pointer;
font-weight: bold;
user-select:none;
}
</style>
</head>
<body>
<div class="section">
<img src="http://i.imgur.com/V5uss7f.jpg" alt="Logo" />
<p><a onclick="javascript:location.reload();">伺服器發生不明原因錯誤… 請稍後再試</a></p>
</div>
</body>
</html>