From 87529c4adcb047398da8416a2015d6a439f90f29 Mon Sep 17 00:00:00 2001
From: Hakim El Hattab <hakim.elhattab@gmail.com>
Date: Sat, 24 Mar 2012 12:36:34 -0400
Subject: [PATCH] delay hash changes to avoid transition lag in chrome and
 enable history by default (closes #22)

---
 index.html   | 2 +-
 js/reveal.js | 8 ++++++--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/index.html b/index.html
index 808f0c03..1518eb95 100644
--- a/index.html
+++ b/index.html
@@ -225,7 +225,7 @@
 				progress: true,
 
 				// If true; each slide will be pushed to the browser history
-				history: false,
+				history: true,
 
 				// Flags if mouse wheel navigation should be enabled
 				mouseWheel: true,
diff --git a/js/reveal.js b/js/reveal.js
index ba2cfd5e..2ecd641e 100644
--- a/js/reveal.js
+++ b/js/reveal.js
@@ -74,7 +74,10 @@ var Reveal = (function(){
                         		document.body.style['OTransform'] !== undefined,
 		
 		// Throttles mouse wheel navigation
-		mouseWheelTimeout = 0;
+		mouseWheelTimeout = 0,
+
+		// Delays updates to the URL due to a Chrome thumbnailer bug
+		writeURLTimeout = 0;
 	
 	/**
 	 * Starts up the slideshow by applying configuration
@@ -490,7 +493,8 @@ var Reveal = (function(){
 
 		updateControls();
 		
-		writeURL();
+		clearTimeout( writeURLTimeout );
+		writeURLTimeout = setTimeout( writeURL, 1500 );
 	}
 
 	/**