What are the potential pitfalls of redirecting back to the page after submitting a form to a script on a different domain?

Potential pitfalls of redirecting back to the page after submitting a form to a script on a different domain include security risks such as cross-site request forgery (CSRF) attacks and browser security restrictions that may prevent the redirect. To solve this issue, consider using a server-side redirect to the desired page after processing the form data on the remote domain. 

<?php
// Process form data on the remote domain
// Redirect to the desired page using server-side redirect
header("Location: https://www.example.com/thank-you-page.php");
exit;
?>

Keywords

Cross-origin CORS HTTP headers security validation

Related Questions