mastodon/app/views/layouts/application.html.haml

!!! 5
%html{ lang: I18n.locale }
  %head
    %meta{ charset: 'utf-8' }/
    %meta{ name: 'viewport', content: 'width=device-width, initial-scale=1' }/

    - if cdn_host?
      %link{ rel: 'dns-prefetch', href: cdn_host }/
      %meta{ name: 'cdn-host', content: cdn_host }/

    - if storage_host?
      %link{ rel: 'dns-prefetch', href: storage_host }/

    %link{ rel: 'icon', href: '/favicon.ico', type: 'image/x-icon' }/

    - %w(16 32 48).each do |size|
      %link{ rel: 'icon', sizes: "#{size}x#{size}", href: asset_pack_path("media/icons/favicon-#{size}x#{size}.png"), type: 'image/png' }/

    - %w(57 60 72 76 114 120 144 152 167 180 1024).each do |size|
      %link{ rel: 'apple-touch-icon', sizes: "#{size}x#{size}", href: asset_pack_path("media/icons/apple-touch-icon-#{size}x#{size}.png") }/

    %link{ rel: 'mask-icon', href: asset_pack_path('media/images/logo-symbol-icon.svg'), color: '#6364FF' }/
    %link{ rel: 'manifest', href: manifest_path(format: :json) }/
    %meta{ name: 'theme-color', content: '#6364FF' }/
    %meta{ name: 'apple-mobile-web-app-capable', content: 'yes' }/
    %meta{ name: 'apple-itunes-app', content: 'app-id=1571998974' }/

    %title= content_for?(:page_title) ? safe_join([yield(:page_title).chomp.html_safe, title], ' - ') : title

    = stylesheet_pack_tag 'common', media: 'all', crossorigin: 'anonymous'
    = stylesheet_pack_tag current_theme, media: 'all', crossorigin: 'anonymous'
    = javascript_pack_tag 'common', crossorigin: 'anonymous'
    = javascript_pack_tag "locale_#{I18n.locale}", crossorigin: 'anonymous'
    = csrf_meta_tags
    %meta{ name: 'style-nonce', content: request.content_security_policy_nonce }

    = stylesheet_link_tag '/inert.css', skip_pipeline: true, media: 'all', id: 'inert-style'
    = stylesheet_link_tag custom_css_path, host: default_url_options[:host], media: 'all'

    = yield :header_tags

  %body{ class: body_classes }
    = content_for?(:content) ? yield(:content) : yield

    .logo-resources{ 'tabindex' => '-1', 'inert' => true, 'aria-hidden' => true }
      = render_symbol :icon
      = render_symbol :wordmark