instance method allow_request_origin?

# File actioncable/lib/action_cable/server/base.rb, line 155
      def allow_request_origin?(env)
        return true if config.disable_request_forgery_protection

        request = ActionDispatch::Request.new(env)
        proto = request.ssl? ? "https" : "http"
        if config.allow_same_origin_as_host && env["HTTP_ORIGIN"] == "#{proto}://#{request.host_with_port}"
          true
        elsif Array(config.allowed_request_origins).any? { |allowed_origin|  allowed_origin === env["HTTP_ORIGIN"] }
          true
        else
          logger.error("Request origin not allowed: #{env['HTTP_ORIGIN']}")
          false
        end
      end