Refactor: GuestAuthorization plugin

Author: lbajsarowicz

app/code/Magento/Webapi/Model/Plugin/GuestAuthorization.php

@@ -3,6 +3,7 @@
  * Copyright © Magento, Inc. All rights reserved.
  * See COPYING.txt for license details.
  */
+declare(strict_types=1);
 
 namespace Magento\Webapi\Model\Plugin;
 
@@ -11,7 +12,7 @@
 /**
  * Plugin around \Magento\Framework\Authorization::isAllowed
  *
- * Plugin to allow guest users to access resources with anonymous permission
+ * Allow guest users to access resources with "anonymous" resource
  */
 class GuestAuthorization
 {
@@ -22,8 +23,7 @@ class GuestAuthorization
      * @param \Closure $proceed
      * @param string $resource
      * @param string $privilege
-     * @return bool true If resource permission is anonymous,
-     * to allow any user access without further checks in parent method
+     * @return bool Is resource permission "anonymous", to allow any user access without further checks in parent method
      * @SuppressWarnings(PHPMD.UnusedFormalParameter)
      */
     public function aroundIsAllowed(
@@ -32,10 +32,10 @@ public function aroundIsAllowed(
         $resource,
         $privilege = null
     ) {
-        if ($resource == AuthorizationService::PERMISSION_ANONYMOUS) {
+        if ($resource === AuthorizationService::PERMISSION_ANONYMOUS) {
             return true;
-        } else {
-            return $proceed($resource, $privilege);
         }
+
+        return $proceed($resource, $privilege);
     }
 }