app/views/layouts/_common_head.html.erb
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="generator" content="Zurb Foundation for Sites 6" class="foundation-mq">
<title><%= content_for?(:title) ? yield(:title) : default_title %></title>
<% if rtl? %>
<%= stylesheet_link_tag "application-rtl" %>
<% else %>
<%= stylesheet_link_tag "application" %>
<% end %>
<%= javascript_include_tag "application", "data-turbolinks-track" => "reload" %>
<%= csrf_meta_tags %>
<%= favicon_link_tag image_path_for("favicon.ico") %>
<noscript>
<%= stylesheet_link_tag "noscript" %>
</noscript>