How Can I Prevent Form Resubmission on Page Refresh?

Preventing Form Resubmission on Page Refresh

Your form faces the issue of duplicated data submission upon page refresh, a common scenario that can corrupt database entries. To address this, you seek a solution that preserves the current page while preventing resubmission.

One method involves utilizing a unique session identifier for each user. This identifier can be compared to a stored value, preventing duplicate submissions. However, the specific implementation of this approach is not immediately available.

Alternatively, you can leverage JavaScript's window.history.replaceState to prevent resubmission when the page is refreshed or the back button is used. Here's a JavaScript snippet that demonstrates this:

if ( window.history.replaceState ) {
    window.history.replaceState( null, null, window.location.href );
}

This code replaces the current history state with a new one that has the same URL as the current page. Consequently, when the user refreshes or clicks the back button, the form is not resubmitted.

While this JavaScript approach is innovative, it's generally recommended to adopt a Post/Redirect/Get (PRG) approach. However, both methods effectively address the issue of form resubmission when the page is refreshed.

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