Returns an array of lower-cased <meta name="ROBOTS"> tokens. If no tag is found, returns an empty array. An optional custom_name specifies the name of a meta tag to look for ahead of "ROBOTS". Names are compared in a case-insensitive manner.
Equivalent to meta_robots(custom_name).include?(‘nofollow’).
Equivalent to meta_robots(custom_name).include?(‘noindex’).
[Validate]