diff --git a/src/js/_enqueues/wp/custom-header.js b/src/js/_enqueues/wp/custom-header.js
index 5a446727fa..ae43f56174 100644
--- a/src/js/_enqueues/wp/custom-header.js
+++ b/src/js/_enqueues/wp/custom-header.js
@@ -287,9 +287,10 @@
 				video = document.createElement( 'video' );
 
 			video.id = 'wp-custom-header-video';
-			video.autoplay = 'autoplay';
-			video.loop = 'loop';
-			video.muted = 'muted';
+			video.autoplay = true;
+			video.loop = true;
+			video.muted = true;
+			video.playsInline = true;
 			video.width = this.settings.width;
 			video.height = this.settings.height;