updated plugin ActivityPub version 9.1.0

wp-content/plugins/activitypub/assets/js/activitypub-admin.js

@@ -17,4 +17,33 @@ jQuery( function( $ ) {
 			$( '.activate-now' ).removeClass( 'thickbox open-plugin-details-modal' );
 		}, 1200 );
 	} );
+
+	/*
+	 * Lazy-load embedded iframes (e.g. the Fediverse intro video) only once their
+	 * container becomes visible. Help tab panels are rendered hidden, and players
+	 * like PeerTube abort with an "invalid width" error when initialized inside a
+	 * zero-width container. Deferring the src until the panel is shown avoids that.
+	 */
+	var lazyIframes = document.querySelectorAll( 'iframe[data-src]' );
+
+	if ( lazyIframes.length && 'IntersectionObserver' in window ) {
+		var iframeObserver = new IntersectionObserver( function( entries, observer ) {
+			entries.forEach( function( entry ) {
+				if ( entry.isIntersecting ) {
+					// Set once, then stop observing so it never reloads.
+					entry.target.src = entry.target.dataset.src;
+					observer.unobserve( entry.target );
+				}
+			} );
+		} );
+
+		lazyIframes.forEach( function( iframe ) {
+			iframeObserver.observe( iframe );
+		} );
+	} else {
+		// IntersectionObserver unsupported: load immediately as a fallback.
+		lazyIframes.forEach( function( iframe ) {
+			iframe.src = iframe.dataset.src;
+		} );
+	}
 } );