From 23d32ffd20ad20bdc753e777a720d149b2fece63 Mon Sep 17 00:00:00 2001
From: Will Calderbank <will@distortedlogic.co.uk>
Date: Tue, 27 Nov 2018 10:26:37 +0000
Subject: [PATCH] Prevent friction value of undefined breaking inertia

---
 src/js/pannellum.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/js/pannellum.js b/src/js/pannellum.js
index 077fa57..417d4a8 100644
--- a/src/js/pannellum.js
+++ b/src/js/pannellum.js
@@ -1249,6 +1249,7 @@ function keyRepeat() {
     // "Inertia"
     if (diff > 0 && !config.autoRotate) {
         // "Friction"
+        config.friction = config.friction == undefined ? defaultConfig.friction : config.friction;
         var slowDownFactor = 1 - config.friction;
 
         // Yaw