I always do a <meta HTTP-EQUIV="Refresh" content="240"> so I know not of this "Refresh:" http header...

Luckily Lincoln knows... =)

There is no support for the HTTP-EQUIV type of <META> tag.
This is because you can modify the HTTP header directly
with the header() method.  For example, if you want to
send the Refresh: header, do it in the header() method:

    print $q->header(-Refresh=>'10; URL=http://www.capricorn.com');

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