Hide top search form on the search page

app/views/layouts/header/_default.html.haml

@@ -8,7 +8,7 @@
       .navbar-collapse.collapse
         %ul.nav.navbar-nav
           %li.hidden-sm.hidden-xs
-            = render 'layouts/search'
+            = render 'layouts/search' unless current_controller?(:search)
           %li.visible-sm.visible-xs
             = link_to search_path, title: 'Search', data: {toggle: 'tooltip', placement: 'bottom', container: 'body'} do
               = icon('search')