I have a couple of perl powered web pages that are used for monitoring servers/services at $work. I'm not at $work at the moment, but IIRC, for the pages that I want to have automatically refresh themselves I put the following in the header (where refresh is usually 90 or 300 depending):
# config stuff:
my $cfg = {
refresh => 300,
interval => 5,
};
# at some point later in the script:
my $expires = strftime("Expires: %a, %d %b %Y %H:%M:%S GMT\n",
gmtime(time+60*$cfg->{interval}));
print <<"EOF";
Content-Type: $content_type
Refresh: $cfg->{refresh}
Pragma: no-cache
Expires: $expires
EOF
No javascript needed.
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