// fovty_nocache_qs: never cache filtered shop URLs
if (isset($_SERVER['QUERY_STRING']) && $_SERVER['QUERY_STRING'] !== '') {
  if (preg_match('/(filter_|add-to-compare|add-to-wishlist|orderby|shop_view|post_type=product)/', $_SERVER['QUERY_STRING'])) {
    define('DONOTCACHEPAGE', true);
  }
}
<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="https://www.physiomircanada.com/wp-sitemap-index.xsl" ?>
<sitemapindex xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"><sitemap><loc>https://www.physiomircanada.com/wp-sitemap-posts-page-1.xml</loc></sitemap><sitemap><loc>https://www.physiomircanada.com/wp-sitemap-posts-elementskit_content-1.xml</loc></sitemap><sitemap><loc>https://www.physiomircanada.com/wp-sitemap-posts-product-1.xml</loc></sitemap><sitemap><loc>https://www.physiomircanada.com/wp-sitemap-taxonomies-category-1.xml</loc></sitemap><sitemap><loc>https://www.physiomircanada.com/wp-sitemap-taxonomies-product_cat-1.xml</loc></sitemap><sitemap><loc>https://www.physiomircanada.com/wp-sitemap-users-1.xml</loc></sitemap></sitemapindex>