Tivoli® Federated Identity Manager uses a generic error template page to show detailed text information when an error occurs in an OAuth 2.0 flow.
The template page is user_error.html.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>OAuth 2.0 - Error</title>
</head>
<body>
<h1>OAuth 2.0 - Error</h1>
<p>The following error was encountered while processing your OAuth request:</p>
<p>Error Code: <b>@ERROR_CODE@</b></p>
<p>Error Description: <b>@ERROR_DESCRIPTION@</b></p>
</body>
</html>