Added Referer-Policy to supported headers

Author: gdarko

includes/src/Traits/Plugin/WcpWooCommerceUtils.php

@@ -58,10 +58,14 @@ public function autoClearPostCacheOnWooCommerceSetStockStatus($product_id)
     }
 
     /**
-     * Retrieve the product ID safely
+     * Retrieve the product ID safely.
+     *
+     * Compatible with older versions
      *
      * @param $product
      *
+     * @since 1.0.0
+     *
      * @return int|string
      */
     private function getProductId($product) {

includes/src/Traits/Shared/HttpUtils.php

@@ -90,6 +90,7 @@ public function cacheableHeadersList()
             'Proxy-Authenticate',
             'Refresh',
             'Retry-After',
+            'Referrer-Policy',
             'Server',
             'Status',
             'Strict-Transport-Security',
@@ -123,7 +124,7 @@ public function cacheableHeadersList()
         if (($status = (string) $this->httpStatus())) {
             array_unshift($headers, $this->httpProtocol().' '.$status);
         }
-        return $headers;
+        return $this->applyWpFilters(MEGAOPTIM_RAPID_CACHE_GLOBAL_NS . '_cacheable_headers', $headers);
     }
 
     /**

readme.txt

@@ -241,4 +241,6 @@ Released under the terms of the [GNU General Public License](http://www.gnu.org/
 - New: Added developer functions: rapidcache_get_version(), rapidcache_clear_cache(), rapidcache_clear_post_cache($post_id), rapidcache_clear_url_cache($url), rapidcache_wipe_cache(), rapidcache_purge_expired_cache(), rapidcache_get_options()
 - New: Added `rapid_cache_ob_callback_filter` that allow to filter the page output before saving into cache
 - Fix: 'Non static method should not be called statically
-- Fix: 'Headers already sent' warnings
+- Fix: 'Headers already sent' warnings
+- Fix: 'Notice: id was called incorrectly. Product properties should not be accessed directly.' warning with WooCommerce
+- New: Add Referrer-Policy to cacheable headers list