From 1395e029d9073e2896316c65ed0280bb3e10a85b Mon Sep 17 00:00:00 2001
From: Bryan Housel <bryan@mapbox.com>
Date: Mon, 9 Jul 2018 16:17:09 -0400
Subject: [PATCH] Add guard code for if Mapillary viewer could not be
 initialized

---
 modules/services/mapillary.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/modules/services/mapillary.js b/modules/services/mapillary.js
index bc9c96622..4805c5ef8 100644
--- a/modules/services/mapillary.js
+++ b/modules/services/mapillary.js
@@ -440,7 +440,7 @@ export default {
 
         var isHidden = wrap.selectAll('.photo-wrapper.mly-wrapper.hide').size();
 
-        if (isHidden) {
+        if (isHidden && _mlyViewer) {
             wrap
                 .selectAll('.photo-wrapper:not(.mly-wrapper)')
                 .classed('hide', true);
@@ -497,7 +497,7 @@ export default {
 
     initViewer: function(imageKey, context) {
         var that = this;
-        if (Mapillary && imageKey) {
+        if (window.Mapillary && imageKey) {
             var opts = {
                 baseImageSize: 320,
                 component: {