No Map Rendered with Ruby Projects (original or fork) Only with NodeJS Projects

[thomas-gt]

Hello,

I installed your widget as indicated and I did not get any map rendering.

Actually I discovered this problem after installing dashing-trafficmap widget which is a fork of yours.
Then I installed dashing-map and I cannot get any map being generated neither with Ruby projects (original dashing project or with dashing-io fork). It only worked with a NodeJS fork that I do not want to use.

I tested many things (syntax, option, etc...) without being able to find out the reason. It seems there is no obvious error threw (checked with debugger).

Of course I have a Google Maps API Key placed into layout.erb file :

script src="https://maps.googleapis.com/maps/api/js?key=this_is_my_google_api_key&sensor=false&libraries=visualization"></script>

Then I created a simplified dashboard (from sample.erb) with dashing-map widget alone :

<% content_for :title do %>My super sweet dashboard<% end %>                                                                          
<div class="gridster">                                                                                                                
  <ul>                                                                                                                                
    <li data-row="1" data-col="1" data-sizex="3" data-sizey="2">                                                                      
      <div data-id="map" data-view="Map" data-title="Map" data-type="heat" data-color="#222222"></div>                                
    </li>                                                                                                                             
  </ul>                                                                                                                               
  <center><div style="font-size: 12px">Try this: curl -d '{ "auth_token": "YOUR_AUTH_TOKEN", "text": "Hey, Look what I can do!" }' \ht
tp://<%=request.host%>:<%=request.port%>/widgets/welcome</div></center>                                                               
</div>     

When accessing (empty) page I get a log line which shows that something happens :

XXX.XX.XX.XXX - - [18/Oct/2016 15:35:02] "GET /views/map.html HTTP/1.1" 200 27 0.0036

But nothing rendered :-(

Have you ever hit such problem ?
Any clue on how to fix this ?
Thanks
Tom