+ my ($size,$mtime) = (stat("$wwwdir/$path"))[7,9];
+ $headers{'-content-length'} = $size;
+ $headers{'-vary'} = 'negotiate,accept-language';
+ $headers{'-last-modified'} = strftime("%a, %d %b %Y %T %z", localtime($mtime));
+ $headers{'-expires'} = strftime("%a, %d %b %Y %T %z", localtime($mtime+(12*3600)));