diff --git a/src/plugins/htmlVideoPlayer/plugin.js b/src/plugins/htmlVideoPlayer/plugin.js
index 08db55ac7c..f996c5de69 100644
--- a/src/plugins/htmlVideoPlayer/plugin.js
+++ b/src/plugins/htmlVideoPlayer/plugin.js
@@ -1342,6 +1342,7 @@ function tryRemoveElement(elem) {
                         }
                     });
                 } else {
+                    // we need to hide scrollbar when starting playback from page with animated background
                     if (options.fullscreen) {
                         hidePrePlaybackPage();
                     }
diff --git a/src/plugins/youtubePlayer/plugin.js b/src/plugins/youtubePlayer/plugin.js
index 5b921010a2..838a13c99b 100644
--- a/src/plugins/youtubePlayer/plugin.js
+++ b/src/plugins/youtubePlayer/plugin.js
@@ -54,6 +54,7 @@ function createMediaElement(instance, options) {
                 }
             });
         } else {
+            // we need to hide scrollbar when starting playback from page with animated background
             if (options.fullscreen) {
                 hideScroll();
             }