Only set accessToken if it is truthy.

Author: willwhite

src/actions/index.js

@@ -61,7 +61,7 @@ function fetchDirections() {
     if (alternatives) options.push('alternatives=true');
     options.push('steps=true');
     options.push('overview=full');
-    options.push('access_token=' + accessToken);
+    if (accessToken) options.push('access_token=' + accessToken);
     request.abort();
     request.open('GET', `${api}${profile}/${query}.json?${options.join('&')}`, true);