Scenario: AJAX submit → Success → location.replace('/redirect/thank-you.html')
Expected Behavior: Form submit → Fetch JSON → Redirect without adding to browser history
PRD Reference: AC-1.2.3
Future Use: This page will be used to test whether the ListenLayer tracking script can capture form data before a JavaScript redirect occurs.
Note: location.replace() prevents using the browser back button to return to this page.