@@ -2458,7 +2458,12 @@ var Reveal = (function(){
}
// ESC or O key
else if ( ( event.keyCode === 27 || event.keyCode === 79 ) && supports3DTransforms ) {
- toggleOverview();
+ if( dom.preview ) {
+ closePreview();
+ }
+ else {
+ toggleOverview();
event.preventDefault();