Improved getLazyLoadConfig function

Author: magefan

Block/Lazy.php

@@ -41,11 +41,16 @@ public function getLazyLoadConfig()
     {
         $config = $this->getData('lazy_load_config');
 
-        if (!$config || !is_array($config)) {
-            $config = [
-                'elements_selector' => 'img,div',
-                'data_srcset' => 'originalset',
-            ];
+        if (!is_array($config)) {
+            $config = [];
+        }
+
+        if (!isset($config['elements_selector'])) {
+            $config['elements_selector'] = 'img,div';
+        }
+
+        if (!isset($config['data_srcset'])) {
+            $config['data_srcset'] = 'originalset';
         }
 
         return json_encode($config);