lib/http/security/headers.rb
require 'http/security/headers/cache_control'
require 'http/security/headers/content_security_policy'
require 'http/security/headers/content_security_policy_report_only'
require 'http/security/headers/pragma'
require 'http/security/headers/public_key_pins'
require 'http/security/headers/public_key_pins_report_only'
require 'http/security/headers/set_cookie'
require 'http/security/headers/strict_transport_security'
require 'http/security/headers/x_content_type_options'
require 'http/security/headers/x_frame_options'
require 'http/security/headers/x_permitted_cross_domain_policies'
require 'http/security/headers/x_xss_protection'