static html page has no header..

every time you make a http request headers are sent before the content

a static html page on your local harddrive does not test how http works

Anyway, this works for me

#!/usr/bin/perl --
use CGI::Carp qw/ fatalsToBrowser /;
use strict;
use warnings;
use IO::Handle;
use CGI;
use autodie qw/ open /;


Main( @ARGV );
exit( 0 );

sub Main {
    STDOUT->autoflush;
    my $cgi = CGI->new;
    PrintHeadersAndContent ( $cgi );
}
sub PrintHeadersAndContent  {
    use autodie qw/ open /;
    my( $cgi ) = @_;

    my $filename = q{/harcoded/path/to/one/file};
    
    open my($fh),'<:raw', $filename; ## or die by autodie
    
    my $attachment = 'Juice.mp4';
    my $size = -s $filename;

    my $begin = 0;
    my $end = $size;

    if( my $httprange = $cgi->http('range') ){
        if( $httprange =~ /bytes=(\d+)(?:-(\d*))?/i ){
            my $from = $1;
            my $to = $2;
            $from  and $begin = $from;
            $to    and $end   = $to;
        }
    }

    my $range = "$begin-$size/$size";


    print $cgi->header(
        -nph => 1,
        -type => "application/x-vlc-plugin",
        -attachment => $attachment,
        -Accept_Ranges => 'bytes',
        -Content_Length => $size,
        -Content_Range =>  $range,
        -Content_Transfer_Encoding =>  'binary',
    );

    my $numbytes = 1024*16;;
    seek $fh, $begin, 0;
    my $curr = $begin;
    while(not eof $fh) {
        my $readed = read $fh, my($data) , $numbytes;
        print STDOUT $data;
        $readed == $numbytes
            or warn "Only read($readed) but wanted($numbytes): $! ## $
+^E ";
        $curr += $numbytes;
        if( $curr + $numbytes > $size ){
            $numbytes = $size - $curr;
        }
    }
    close $fh;
}

__END__
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