diff --git a/includes/build-visual-html-tree.php b/includes/build-visual-html-tree.php
index ac31a0a..5187ea9 100644
--- a/includes/build-visual-html-tree.php
+++ b/includes/build-visual-html-tree.php
@@ -202,7 +202,7 @@ static function ( $a, $b ) {
 			case '#cdata-section':
 			case '#text':
 				$text_content = $processor->get_modifiable_text();
-				if ( '' === trim( $text_content, " \f\t\r\n" ) ) {
+				if ( '' === $text_content ) {
 					break;
 				}
 				$was_text = true;
@@ -237,7 +237,7 @@ static function ( $a, $b ) {
 							++$indent_level;
 						}
 
-						// If they're no attributes, we're done here.
+						// When no attributes are present, there’s nothing left to do.
 						if ( empty( $block_attrs ) ) {
 							break;
 						}