From 835d45ed6d0b7e11b42bf88a16555516bd4a8501 Mon Sep 17 00:00:00 2001
From: Bryan Housel <bryan@mapbox.com>
Date: Fri, 19 Jan 2018 11:53:14 -0500
Subject: [PATCH] Never let mouseCoordinates return NaN (fallback to map
 center)

---
 modules/renderer/map.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/modules/renderer/map.js b/modules/renderer/map.js
index 58e71131c..177fc6b42 100644
--- a/modules/renderer/map.js
+++ b/modules/renderer/map.js
@@ -511,8 +511,10 @@ export function rendererMap(context) {
     };
 
 
+    // returns Lng/Lat
     map.mouseCoordinates = function() {
-        return projection.invert(map.mouse());
+        var coord = map.mouse() || pxCenter();
+        return projection.invert(coord);
     };