Issue #3151098 by rik-dev, dww: Replace use of whitelist/blacklist in Big Pipe module

core/modules/big_pipe/src/Render/Placeholder/BigPipeStrategy.php

@@ -210,7 +210,7 @@ protected static function createBigPipeJsPlaceholder($original_placeholder, arra
         'library' => [
           'big_pipe/big_pipe',
         ],
-        // Inform BigPipe' JavaScript known BigPipe placeholder IDs (a whitelist).
+        // Inform BigPipe' JavaScript known BigPipe placeholder IDs.
         'drupalSettings' => [
           'bigPipePlaceholderIds' => [$big_pipe_placeholder_id => TRUE],
         ],