Because WWW::Scripter looks at the "document" rather than the
"content",(I think) find_links misses out meta tags, so although it
sub-classes WWW::Mechanize, the later finds the link in :
<HTML><HEAD><META HTTP-EQUIV=Refresh
CONTENT=0;URL=/my_new_page.html></HEAD><BODY></BODY></HTML>
but WWW:Scripter doesn't.