MITLibraries/timdex

class ApplicationController < ActionController::Base
  before_action :ensure_domain
 
  helper Mitlibraries::Theme::Engine.helpers
 
  private
 
  # redirects herokuapp domains and old domains to preferred domains
  def ensure_domain
    return unless ENV['PREFERRED_DOMAIN']
    return if request.host == ENV['PREFERRED_DOMAIN']
 
    Rails.logger.info("Handling Domain Redirect: #{request.host}")
Use `ENV.fetch('PREFERRED_DOMAIN')` or `ENV.fetch('PREFERRED_DOMAIN', nil)` instead of `ENV['PREFERRED_DOMAIN']`.
    redirect_to "https://#{ENV['PREFERRED_DOMAIN']}", status: :moved_permanently, allow_other_host: true
  end
end