discourse/app/views/layouts/application.html.erb

<!DOCTYPE html>
<html lang="<%= html_lang %>" class="<%= html_classes %>">
  <head>
    <meta charset="utf-8">
    <title><%= content_for?(:title) ? yield(:title) : SiteSetting.title %></title>
    <meta name="description" content="<%= @description_meta || SiteSetting.site_description %>">
    <meta name="discourse_theme_id" content="<%= theme_id %>">
    <meta name="discourse_current_homepage" content="<%= current_homepage %>">
    <%= render partial: "layouts/head" %>
    <%= discourse_csrf_tags %>

    <%= render partial: "common/discourse_stylesheet" %>

    <%- if SiteSetting.enable_escaped_fragments? %>
      <meta name="fragment" content="!">
    <%- end %>

    <%- if shared_session_key %>
      <meta name="shared_session_key" content="<%= shared_session_key %>">
    <%- end %>

    <%= build_plugin_html 'server:before-script-load' %>

    <link rel="preload" href="<%= script_asset_path "start-discourse" %>" as="script">
    <link rel="preload" href="<%= script_asset_path "browser-update" %>" as="script">
    <%= preload_script 'browser-detect' %>

    <%= preload_script "locales/#{I18n.locale}" %>
    <%- if ExtraLocalesController.client_overrides_exist? %>
      <%= preload_script_url ExtraLocalesController.url('overrides') %>
    <%- end %>
    <%= preload_vendor_scripts %>
    <%= preload_script "application" %>
    <%- Discourse.find_plugin_js_assets(include_official: allow_plugins?, include_unofficial: allow_third_party_plugins?, request: request).each do |file| %>
      <%= preload_script file %>
    <%- end %>
    <%- if staff? %>
      <%= preload_script_url ExtraLocalesController.url('admin') %>
      <%= preload_script "admin" %>
    <%- end %>

    <%- unless customization_disabled? %>
      <%= theme_translations_lookup %>
      <%= theme_js_lookup %>
      <%= theme_lookup("head_tag") %>
    <%- end %>

    <%= render_google_tag_manager_head_code %>
    <%= render_google_universal_analytics_code %>
    <link id="manifest-link" rel="manifest" href=<%= manifest_url %> crossorigin="use-credentials">

    <%- if include_ios_native_app_banner? %>
        <meta name="apple-itunes-app" content="app-id=<%= SiteSetting.ios_app_id %><%= ios_app_argument %>">
    <%- end %>


    <%= yield :head %>

    <%= build_plugin_html 'server:before-head-close' %>

    <%= tag.meta id: 'data-discourse-setup', data: client_side_setup_data %>

    <meta name="discourse/config/environment" content="<%=u discourse_config_environment %>" />
    <%- if authentication_data %>
      <meta id="data-authentication" data-authentication-data="<%= authentication_data %>">
    <%- end %>
  </head>

  <body class="<%= body_classes %>">
    <%- if allow_plugins? %>
      <%= build_plugin_html 'server:after-body-open' %>
    <%- end -%>

    <%= render_google_tag_manager_body_code %>
    <noscript data-path="<%= request.env['PATH_INFO'] %>">
      <%= render partial: 'header' %>
      <div id="main-outlet" class="wrap" role="main">
        <!-- preload-content: -->
        <%= yield %>
        <!-- :preload-content -->
        <footer class="noscript-footer-nav">
          <nav itemscope itemtype='http://schema.org/SiteNavigationElement'>
            <a href='<%= path "/" %>'><%= t 'home_title' %></a>
            <%= link_to t('js.filters.categories.title'), path("/categories") %>
            <%= link_to t('guidelines_topic.title'), path("/guidelines") %>
            <%= link_to t('tos_topic.title'), path("/tos") %>
            <%= link_to t('privacy_topic.title'), path("/privacy") %>
          </nav>
        </footer>
      </div>

      <footer id='noscript-footer'>
        <p><%= t 'powered_by_html' %></p>
      </footer>
    </noscript>

    <%- unless customization_disabled? %>
      <%= theme_lookup("header") %>
    <%- end %>

    <%- if allow_plugins? %>
      <%= build_plugin_html 'server:header' %>
    <%- end %>

    <section id='main'>
    </section>

    <% unless current_user %>
      <form id='hidden-login-form' method="post" action="<%=main_app.login_path%>" style="display: none;">
        <input name="username" type="text"     id="signin_username">
        <input name="password" type="password" id="signin_password">
        <input name="redirect" type="hidden">
        <input type="submit" id="signin-button" value="<%= t 'log_in' %>">
      </form>
    <% end %>

    <div class="hidden" id="data-preloaded" data-preloaded="<%= preloaded_json %>"></div>

    <script src="<%= script_asset_path "start-discourse" %>"></script>

    <%= yield :data %>

    <script src="<%= script_asset_path "browser-update" %>"></script>

    <%- unless customization_disabled? %>
      <%= theme_lookup("body_tag") %>
    <%- end %>

    <%- if allow_plugins? %>
      <%= build_plugin_html 'server:before-body-close' %>
    <%- end %>
  </body>
</html>