if (substr($req_uri, 0, 1) ne '/') {
my ($match) = $req_uri =~ m|^([^/]+)|;
my ($path_info_part) = $path_info =~ m|^(.*?\Q$match\E)|;
- substr($req_uri, 0, length($match), $path_info_part);
+ substr($req_uri, 0, length($match), $path_info_part)
+ if $path_info_part;
}
$path_info = $req_uri;
}