How to prevent form resubmission when page is refreshed (F5 / CTRL+R)
I would also like to point out that you can use a javascript approach, window.history.replaceState to prevent a resubmit on refresh and back button. <script> if ( window.history.replaceState ) { window.history.replaceState( null, null, window.location.href ); } </script> Proof of concept here: https://dtbaker.net/files/prevent-post-resubmit.php (Link no longer works) I would still recommend a Post/Redirect/Get approach, but this … Read more