= link_to safe_params.merge(rss_url_options), class: 'btn has-tooltip js-rss-button', data: { container: 'body' }, title: _('Subscribe to RSS feed') do
  = sprite_icon('rss')
= link_to safe_params.merge(calendar_url_options), class: 'btn has-tooltip', data: { container: 'body' }, title: _('Subscribe to calendar') do
  = sprite_icon('calendar')