add 'wrong mapbox-gl version' error

Author: etpinard

src/plots/mapbox/constants.js

@@ -9,13 +9,21 @@
 
 'use strict';
 
+var requiredVersion = '0.44.0';
 
 module.exports = {
+    requiredVersion: requiredVersion,
+
     styleUrlPrefix: 'mapbox://styles/mapbox/',
     styleUrlSuffix: 'v9',
 
     controlContainerClassName: 'mapboxgl-control-container',
 
+    wrongVersionErrorMsg: [
+        'Your custom plotly.js bundle is not using the correct mapbox-gl version',
+        'Please install mapbox-gl@' + requiredVersion + '.'
+    ].join('\n'),
+
     noAccessTokenErrorMsg: [
         'Missing Mapbox access token.',
         'Mapbox trace type require a Mapbox access token to be registered.',

src/plots/mapbox/index.js

@@ -53,6 +53,10 @@ exports.plot = function plotMapbox(gd) {
     var calcData = gd.calcdata;
     var mapboxIds = fullLayout._subplots[MAPBOX];
 
+    if(mapboxgl.version !== constants.requiredVersion) {
+        throw new Error(constants.wrongVersionErrorMsg);
+    }
+
     var accessToken = findAccessToken(gd, mapboxIds);
     mapboxgl.accessToken = accessToken;