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Pass authentication data through REST API requests

By default, the WordPress REST API doesn’t pass along authentication data.

If your FacetWP template depends on the current logged-in user, you’ll run into issues when an AJAX refresh is triggered.

Fortunately, there’s an easy workaround:

/*
  Please note that caching may interfere with the NONCE,
  causing ajax requests to fail. Please DISABLE CACHING for facet pages,
  or set the cache expiration to < 12 hours!
*/

add_action( 'wp_footer', function() {
?>
<script>
(function($) {
  $(function() {
    wp.hooks.addFilter('facetwp/ajax_settings', function(settings) {
      settings.headers = {
        'X-WP-Nonce': FWP_JSON.nonce
      };
      return settings;
    });
  });
})(jQuery);
</script>
<?php
}, 100 );