1 năm trước cách đây · bf285afcf2
--- a/dist/reveal.esm.js
+++ b/dist/reveal.esm.js
--- a/dist/reveal.esm.js.map
+++ b/dist/reveal.esm.js.map
--- a/dist/reveal.js
+++ b/dist/reveal.js
--- a/dist/reveal.js.map
+++ b/dist/reveal.js.map
--- a/js/controllers/scrollview.js
+++ b/js/controllers/scrollview.js
@@ -801,8 +801,8 @@ export default class ScrollView {
 
															 		if( page.active ) {
														
 
															 			page.active = false;
														
 
															-			page.slideElement.classList.remove( 'present' );
														
 
															-			page.backgroundElement.classList.remove( 'present' );
														
 
															+			if( page.slideElement ) page.slideElement.classList.remove( 'present' );
														
 
															+			if( page.backgroundElement ) page.backgroundElement.classList.remove( 'present' );
														
 
															 		}