Here is a bag of clues :)

follow LWP meta refresh, mechanize meta refresh ddg://site:perlmonks.org mechanize meta refresh -> WWW::Mechanize follow meta refreshes, Mechanize not recognizing link in <META HTTP-EQUIV="Refresh", www::mechanize reloading page

mechanize meta -> WWW::Mechanize::Meta - Adds HEAD tag parsing to WWW::Mechanize, WWW::Mechanize::Plugin::FollowMetaRedirect - Follows 'meta refresh' link