spec/dummy/app/views/layouts/application.html.erb

<!DOCTYPE html>
<html>
<head>
  <title>Dummy</title>

  <%= yield :head %>

  <%= env_stylesheet_link_tag(static: 'application_static',
                              hot: 'application_non_webpack',
                              media: 'all',
                              'data-turbolinks-track' => true) %>

  <!-- These do not use turbolinks, so no data-turbolinks-track -->
  <!-- This is to load the hot assets. -->
  <%= env_javascript_include_tag(hot: ['http://localhost:3500/vendor-bundle.js',
                                       'http://localhost:3500/app-bundle.js']) %>

  <!-- These do use turbolinks -->
  <%= env_javascript_include_tag(static: 'application_static',
                                 hot: 'application_non_webpack',
                                 'data-turbolinks-track' => true) %>

  <%= csrf_meta_tags %>
</head>
<body>
<% flash.each do |key, value| %>
  <%= content_tag :div, value, class: "flash #{key}" %>
<% end %>

<%= yield %>

<!-- This is a placeholder for ReactOnRails to know where to render the store props for
     client side hydration -->
<%= redux_store_hydration_data %>

</body>
</html>