Update file .module

tagembed_integration.module

@@ -11,8 +11,8 @@ function tagembed_integration_theme(): array {
   return [
     'tagembed_block' => [
       'variables' => [
-        'iframe_url' => 'iframe_urliframe_url',
-        'custom_css' => '.custom_csscustom_css{}',
+        'iframe_url' => '',
+        'custom_css' => '',
       ],
     ],
   ];