Implementing an error page

For all the common error scenarios there is a custom error page implemented at common/error.ftl, which is shown as follows:

<!DOCTYPE html>
<html lang="en">

  <head>

    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, 
    shrink-to-fit=no">
    <meta name="description" content="">
    <meta name="author" content="">

    <title>Error : ${status}</title>
    <link rel="stylesheet" type="text/css" 
    href="/webjars/bootstrap/4.0.0/css/bootstrap.min.css"/>

    <!-- Custom styles for this template -->
    <link href="/css/blog-post.css" rel="stylesheet">

  </head>
  <body>
    <nav class="navbar navbar-expand-lg navbar-dark bg-dark fixed-top">
      <div class="container">
        <a class="navbar-brand" href="/">Blog Management System</a>
      </div>
    </nav>

    <div class="container">

      <div class="row">
        <div class="col-lg-8">

          <!-- Title -->
          <h1 class="mt-4">${status}</h1>

          <p>${exception.message}
        </div>
      </div>
    </div>
  </body>

</html>

The preceding page will show the HTTP status and exception.message in the page for easy troubleshooting regarding what went wrong.

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Table of Contents for
Implementing an error page