start video muted

script.js

@@ -177,6 +177,9 @@ const createSlideElement = (movie, hasVideo = false) => {
             height: '100%',
             width: '100%',
             videoId,
+            playerVars: {
+                mute: 1  // Start the video muted
+            },
             events: {
                 'onReady': event => {
                     event.target.playVideo();