diff --git a/core/modules/views/src/Plugin/views/PluginBase.php b/core/modules/views/src/Plugin/views/PluginBase.php
index 70e7666..a9d73bc 100644
--- a/core/modules/views/src/Plugin/views/PluginBase.php
+++ b/core/modules/views/src/Plugin/views/PluginBase.php
@@ -402,6 +402,9 @@ function ($children, $elements) {
         ],
       );
 
+      // Currently you cannot attach assets to tokens, however renderPlain is
+      // unnecessarily limiting. Consider using executeInRenderContext instead.
+      // @todo: https://www.drupal.org/node/2566621
       return (string) $this->getRenderer()->renderPlain($build);
     }
     else {