From d7633706e7cd2dae163e1b4fac376e19e5889620 Mon Sep 17 00:00:00 2001
From: NathanSweet <nathan.sweet@gmail.com>
Date: Fri, 20 May 2016 02:00:36 +0200
Subject: [PATCH] spine-js, fixed FfdTimeline.

---
 spine-js/spine.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/spine-js/spine.js b/spine-js/spine.js
index fbb710711..ea554a0e8 100644
--- a/spine-js/spine.js
+++ b/spine-js/spine.js
@@ -979,7 +979,8 @@ spine.FfdTimeline.prototype = {
 	apply: function (skeleton, lastTime, time, firedEvents, alpha) {
 		var slot = skeleton.slots[this.slotIndex];
 		var slotAttachment = slot.attachment;
-		if (slotAttachment != this.attachment && (!slotAttachment.inheritFFD || slotAttachment.parentMesh != sourceAttachment)) return;
+		if (!slotAttachment) return;
+		if (slotAttachment != this.attachment && (!slotAttachment.inheritFFD || slotAttachment.parentMesh != this.attachment)) return;
 
 		var frames = this.frames;
 		if (time < frames[0]) return; // Time is before first frame.