mastodon/app/views/home/index.html.haml

- content_for :header_tags do
  %meta{name: 'applicationServerKey', content: Rails.configuration.x.vapid_public_key}
  %script#initial-state{ type: 'application/json' }!= json_escape(@initial_state_json)

  = javascript_pack_tag 'application', integrity: true, crossorigin: 'anonymous'

.app-holder#mastodon{ data: { props: Oj.dump(default_props) } }
  %noscript
    = image_tag asset_pack_path('logo.svg'), alt: 'Mastodon'

    %div
      = t('errors.noscript')