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prevent exception when initializing with no slides #1678 #1679

Hakim El Hattab 8 years ago
parent
commit
0b6585bd44
1 changed files with 3 additions and 0 deletions
  1. 3 0
      js/reveal.js

+ 3 - 0
js/reveal.js

@@ -2137,6 +2137,9 @@
 		// Query all horizontal slides in the deck
 		var horizontalSlides = dom.wrapper.querySelectorAll( HORIZONTAL_SLIDES_SELECTOR );
 
+		// Abort if there are no slides
+		if( horizontalSlides.length === 0 ) return;
+
 		// If no vertical index is specified and the upcoming slide is a
 		// stack, resume at its previous vertical index
 		if( v === undefined && !isOverview() ) {