In rails 3, I included this line:
<%= javascript_include_tag "http://cdn.leafletjs.com/leaflet-0.5.1/leaflet.js" %>
But when migrate to rails 4, its not posible and I get the next error:
Invalid argument - C:/Ruby193/findiner/app/assets/javascripts/http://cdn.leafletjs.com/leaflet-0.5.1
So far, I won't be able to get remote libraries. Thanks for help!