WP Divi: remove query parameters when using search module

functions.php

// the search module of divi adds some hidden fields into the search form,
// so you get some (maybe) unwanted additional queries in your search result url.
// field names and values may vary depending on module settings

function remove_hidden_fields_from_search_module($output, $tag) {
  // only for Divi search module
  if ($tag === 'et_pb_search') {
    // remove hidden fields
    $output = preg_replace('/<input type="hidden" name="et_pb_searchform_submit" value="et_search_proccess" \/>/', '', $output);
    $output = preg_replace('/<input type="hidden" name="et_pb_include_posts" value="yes" \/>/', '', $output);
    $output = preg_replace('/<input type="hidden" name="et_pb_include_pages" value="yes" \/>/', '', $output);
  }
  return $output;
}
add_filter('do_shortcode_tag', 'remove_hidden_fields_from_search_module', 10, 2);