FIX: Discourse.BaseUri should not default to /

app/models/admin_dashboard_data.rb

@@ -61,7 +61,7 @@ class AdminDashboardData
                       :failing_emails_check, :default_logo_check, :contact_email_check,
                       :send_consumer_email_check, :title_check,
                       :site_description_check, :site_contact_username_check,
-                      :notification_email_check
+                      :notification_email_check, :subfolder_ends_in_slash_check
 
     add_problem_check do
       sidekiq_check || queue_size_check
@@ -200,4 +200,8 @@ class AdminDashboardData
     I18n.t('dashboard.ruby_version_warning') if RUBY_VERSION == '2.0.0' and RUBY_PATCHLEVEL < 247
   end
 
+  def subfolder_ends_in_slash_check
+    I18n.t('dashboard.subfolder_ends_in_slash') if Discourse.base_uri =~ /\/$/
+  end
+
 end