# File lib/domain_name.rb, line 129 def cookie_domain?(domain) domain = DomainName.new(domain) unless DomainName === domain if ipaddr? # RFC 6265 #5.1.3 # Do not perform subdomain matching against IP addresses. @hostname == domain.hostname else # RFC 6265 #4.1.1 # Domain-value must be a subdomain. @domain && self <= domain && domain <= @domain ? true : false end end