FIX: offline controller regression

app/controllers/offline_controller.rb

@@ -1,6 +1,6 @@
 class OfflineController < ApplicationController
   layout false
-  skip_before_filter :preload_json, :check_xhr, :redirect_to_login_if_required
+  skip_before_action :preload_json, :check_xhr, :redirect_to_login_if_required
 
   def index
     render :offline, content_type: 'text/html'

spec/controllers/offline_controller_spec.rb

@@ -0,0 +1,8 @@
+require 'rails_helper'
+
+describe OfflineController do
+  it "can hit index" do
+    get :index
+    expect(response.status).to eq(200)
+  end
+end