What potential issues can arise when using Ajax with PHP for form submissions, especially in browsers like Safari or Chrome?

One potential issue that can arise when using Ajax with PHP for form submissions is the problem of caching in browsers like Safari or Chrome. This can lead to outdated data being displayed to users because the browser is serving a cached version of the page instead of making a new request to the server. To solve this issue, you can add a cache-control header to the PHP script that processes the form submission. By setting the cache-control header to prevent caching, you can ensure that the browser always fetches the latest data from the server. 

<?php
header("Cache-Control: no-cache, must-revalidate");

// Process form submission
// Your form processing code here
?>

Keywords

Ajax PHP form submissions Safari Chrome

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