diff options
| -rw-r--r-- | js/reveal.js | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/js/reveal.js b/js/reveal.js index fc5164d..5ed71c1 100644 --- a/js/reveal.js +++ b/js/reveal.js @@ -439,7 +439,7 @@ var Reveal = (function(){ } if ( config.controls && dom.controls ) { - var actionEvent = 'ontouchstart' in window ? 'touchstart' : 'click'; + var actionEvent = 'ontouchstart' in window && window.ontouchstart != null ? 'touchstart' : 'click'; dom.controlsLeft.forEach( function( el ) { el.removeEventListener( actionEvent, onNavigateLeftClicked, false ); } ); dom.controlsRight.forEach( function( el ) { el.removeEventListener( actionEvent, onNavigateRightClicked, false ); } ); dom.controlsUp.forEach( function( el ) { el.removeEventListener( actionEvent, onNavigateUpClicked, false ); } ); |