my ($fd, $highlight, $syntax) = @_;
        return $fd unless ($highlight && defined $syntax);
 
-       close $fd
-               or die_error(404, "Reading blob failed");
+       close $fd;
        open $fd, quote_command(git_cmd(), "cat-file", "blob", $hash)." | ".
                  quote_command($highlight_bin).
-                 " --xhtml --fragment --syntax $syntax |"
+                 " --fragment --syntax $syntax |"
                or die_error(500, "Couldn't open file or run syntax highlighter");
        return $fd;
 }
                        $href_params{'-title'} = 'log';
                }
 
-               foreach my $format qw(RSS Atom) {
+               foreach my $format (qw(RSS Atom)) {
                        my $type = lc($format);
                        my %link_attr = (
                                '-rel' => 'alternate',
                insert_file($site_header);
        }
 
-       print "<div class=\"page_header\">\n" .
-             $cgi->a({-href => esc_url($logo_url),
-                      -title => $logo_label},
-                     qq(<img src=").esc_url($logo).qq(" width="72" height="27" alt="git" class="logo"/>));
+       print "<div class=\"page_header\">\n";
+       if (defined $logo) {
+               print $cgi->a({-href => esc_url($logo_url),
+                              -title => $logo_label},
+                             $cgi->img({-src => esc_url($logo),
+                                        -width => 72, -height => 27,
+                                        -alt => "git",
+                                        -class => "logo"}));
+       }
        print $cgi->a({-href => esc_url($home_link)}, $home_link_str) . " / ";
        if (defined $project) {
                print $cgi->a({-href => href(action=>"summary")}, esc_html($project));
                }
                $href_params{'-title'} ||= 'log';
 
-               foreach my $format qw(RSS Atom) {
+               foreach my $format (qw(RSS Atom)) {
                        $href_params{'action'} = lc($format);
                        print $cgi->a({-href => href(%href_params),
                                      -title => "$href_params{'-title'} $format feed",
                }
                if ($diff->{'from_mode'} ne ('0' x 6)) {
                        $from_mode_oct = oct $diff->{'from_mode'};
-                       if (S_ISREG($to_mode_oct)) { # only for regular file
+                       if (S_ISREG($from_mode_oct)) { # only for regular file
                                $from_mode_str = sprintf("%04o", $from_mode_oct & 0777); # permission bits
                        }
                        $from_file_type = file_type($diff->{'from_mode'});