From b66a4afd28f4125d9baecc34cf6296b76e872d13 Mon Sep 17 00:00:00 2001
From: orangemug <info@orangemug.co.uk>
Date: Fri, 2 Feb 2018 15:33:15 +0000
Subject: [PATCH] Do not expose fallback tokens during export. Fixes #230

---
 src/components/App.jsx |  2 +-
 src/libs/style.js      | 14 ++++++++++++--
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/src/components/App.jsx b/src/components/App.jsx
index 4eca4c3..bd5ffec 100644
--- a/src/components/App.jsx
+++ b/src/components/App.jsx
@@ -247,7 +247,7 @@ export default class App extends React.Component {
 
   mapRenderer() {
     const mapProps = {
-      mapStyle: style.replaceAccessToken(this.state.mapStyle),
+      mapStyle: style.replaceAccessToken(this.state.mapStyle, {allowFallback: true}),
       onDataChange: (e) => {
         this.layerWatcher.analyzeMap(e.map)
         this.fetchSources();
diff --git a/src/libs/style.js b/src/libs/style.js
index 4441912..0e78652 100644
--- a/src/libs/style.js
+++ b/src/libs/style.js
@@ -54,13 +54,23 @@ function indexOfLayer(layers, layerId) {
   return null
 }
 
-function replaceAccessToken(mapStyle) {
+function replaceAccessToken(mapStyle, opts={}) {
   const omtSource = mapStyle.sources.openmaptiles
   if(!omtSource) return mapStyle
   if(!omtSource.hasOwnProperty("url")) return mapStyle
 
   const metadata = mapStyle.metadata || {}
-  const accessToken = metadata['maputnik:openmaptiles_access_token'] || tokens.openmaptiles
+  let accessToken = metadata['maputnik:openmaptiles_access_token'];
+
+  if(opts.allowFallback && !accessToken) {
+    accessToken = tokens.openmaptiles;
+  }
+
+  if(!accessToken) {
+    // Early exit.
+    return mapStyle;
+  }
+
   const changedSources = {
     ...mapStyle.sources,
     openmaptiles: {