<!DOCTYPE HTML>
<html>
<head>
  <meta charset="utf-8">
  <title>Bug 1661423 - don't apply upgrade-insecure-requests on form submissions to localhost</title>
</head>
<body>

<form id="form" action="http://127.0.0.1/bug-1661423-dont-upgrade-localhost">
  <input type="submit">
</form>>
<script type="text/javascript">

    form.submit();
</script>
</body>
</html>
