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Q&A > CGI programming > Why do some browsers show none of my output? - Answer contributed by btrott

What is showing up, then? Are you sure you're sending back the correct HTTP header? Make sure you're sending back a Content-Type of text/html:
use CGI qw/:standard/; print header;
Or, if you're using mod_perl:
$r->content_type("text/html"); $r->send_http_header;