Fix strpos index and use get_stylesheet() instead of private property…

… stylesheet

start.php

@@ -84,7 +84,15 @@ function_exists( 'wp_is_json_request' ) &&
 	$themes_directory         = get_theme_root( get_stylesheet() );
 	$themes_directory_name    = basename( $themes_directory );
 
-    // This change ensures that the condition works even if the SDK is located in a subdirectory (e.g., vendor)
+    /**
+     * We updated the logic to support SDK loading from a subfolder of a theme as well as from a parent theme
+     * If the SDK is found in the active theme, it sets the relative path accordingly.
+     * If not, it checks the parent theme and sets the relative path if found there.
+     * This allows the SDK to be loaded from composer dependencies or from a custom `vendor/freemius` folder.
+     *
+     * @author Daniele Alessandra (@DanieleAlessandra)
+     * @since  2.9.0.5
+     */
     $theme_candidate_sdk_basename = str_replace( $themes_directory . '/' . get_stylesheet() . '/', '', $fs_root_path );
 
     // Check if the current file is part of the active theme.
@@ -253,8 +261,12 @@ function_exists( 'wp_is_json_request' ) &&
         } else {
             $current_theme = wp_get_theme();
             // Detect if current theme is the one registered as newer SDK
-            $is_newest_sdk_module_active = ( strpos( $fs_newest_sdk->plugin_path,
-                    '/' . $themes_directory_name . '/' . $current_theme->stylesheet . '/' ) !== false );
+            $is_newest_sdk_module_active = (
+                strpos(
+                    $fs_newest_sdk->plugin_path,
+                    '../' . $themes_directory_name . '/' . $current_theme->get_stylesheet() . '/'
+                ) === 0
+            );
 
             $current_theme_parent = $current_theme->parent();
 
@@ -264,8 +276,12 @@ function_exists( 'wp_is_json_request' ) &&
              */
             if ( ! $is_newest_sdk_module_active && $current_theme_parent instanceof WP_Theme ) {
                 // Detect if current theme parent is the one registered as newer SDK
-                $is_newest_sdk_module_active = ( strpos( $fs_newest_sdk->plugin_path,
-                        '../' . $themes_directory_name . '/' . $current_theme_parent->stylesheet . '/' ) === 0 );
+                $is_newest_sdk_module_active = (
+                    strpos(
+                        $fs_newest_sdk->plugin_path,
+                        '../' . $themes_directory_name . '/' . $current_theme_parent->get_stylesheet() . '/'
+                    ) === 0
+                );
             }
 		}