From ce47f6dc4907c757f2d7efa0ec20b6754932837d Mon Sep 17 00:00:00 2001
From: Jesse Tolj <jesse.tolj@teamcolab.com>
Date: Tue, 7 Aug 2018 12:37:17 -0400
Subject: [PATCH] IE11 play is undefined addresses #1015

---
 src/howler.core.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/howler.core.js b/src/howler.core.js
index 8577cfaf..b5069fdc 100644
--- a/src/howler.core.js
+++ b/src/howler.core.js
@@ -781,7 +781,7 @@
             var play = node.play();
 
             // Support older browsers that don't support promises, and thus don't have this issue.
-            if (typeof Promise !== 'undefined' && (play instanceof Promise || typeof play.then === 'function')) {
+            if (play && typeof Promise !== 'undefined' && (play instanceof Promise || typeof play.then === 'function')) {
               // Implements a lock to prevent DOMException: The play() request was interrupted by a call to pause().
               self._playLock = true;