How can I return a custom JSON body on 404, instead of the default html of:
<html>
<head>
<title>404 Not Found</title>
</head>
<body bgcolor="white">
<center>
<h1>404 Not Found</h1>
</center>
<hr>
<center>nginx</center>
</body>
</html>
<html>
<head>
<title>404 Not Found</title>
</head>
<body bgcolor="white">
<center>
<h1>404 Not Found</h1>
</center>
<hr>
<center>nginx</center>
</body>
</html>