assets/reveal.js/plugin/zoom-js/zoom.js in slippery-0.3.0 vs assets/reveal.js/plugin/zoom-js/zoom.js in slippery-0.4.0

@@ -1,10 +1,12 @@
 // Custom reveal.js integration
 (function(){
 	var isEnabled = true;
 
 	document.querySelector( '.reveal' ).addEventListener( 'mousedown', function( event ) {
-		if( event.altKey && isEnabled ) {
+		var modifier = ( Reveal.getConfig().zoomKey ? Reveal.getConfig().zoomKey : 'alt' ) + 'Key';
+
+		if( event[ modifier ] && isEnabled ) {
 			event.preventDefault();
 			zoom.to({ element: event.target, pan: false });
 		}
 	} );