Your "lines" may match more than one value - and you're only seeing at the first. Change your while to:

while(<>) {
  print "$1\n" for /(\/$pathchrs*$target$path*)/og
}
[download]

Or, maybe get rid of the "o" modifier:

my $pathre = qr/\/$pathchrs*$target$path*/;
while(<>) {
  print "$1\n" for /($pathre)/g;
}
[download]

The problem is that your binary "glop" probably doesn't have any \n's in it for perl to treat as a new line.

Of course, you're not entirely explicit with what you do get, so I'm just guessing.