diff --git a/inc/namespace.php b/inc/namespace.php
index 9a58c0a..7b33991 100644
--- a/inc/namespace.php
+++ b/inc/namespace.php
@@ -74,7 +74,7 @@ function enable_lightbox_for_images( string $content ): string {
$libxml_use_internal_errors = libxml_use_internal_errors( true );
$document_loaded = $document->loadHTML(
sprintf(
- '%s',
+ '%s',
$content
),
LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD
@@ -144,8 +144,18 @@ function enable_lightbox_for_images( string $content ): string {
$link->setAttribute( 'data-group', $image_id );
}
- // Strip the XML tag as it's only used for the internal encoding.
- $document_html = trim( str_replace( '', '', (string) $document->saveHTML() ) );
+ // Strip the XML tag and placeholders as it's only used for the internal encoding.
+ $document_html = trim(
+ str_replace(
+ [
+ '',
+ '',
+ '',
+ ],
+ '',
+ (string) $document->saveHTML()
+ )
+ );
if ( $document_html ) {
$content = $document_html;
}