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diff --git a/plack/lib/Plack/App/BookReader.pm b/plack/lib/Plack/App/BookReader.pm
index f3f26f3..9731530 100644 (file)
--- a/plack/lib/Plack/App/BookReader.pm
+++ b/plack/lib/Plack/App/BookReader.pm
@@ -237,7 +237,7 @@ sub serve_path {
                        warn "# reduce $reduce $path\n";
 
                        my $cache_path = "cache/$path.reduce.$reduce.jpg";
-                       if ( $reduce <= 1 ) {
+                       if ( $reduce <= 1 && $path =~ m/\.jpe?g$/ ) {
                                $cache_path = $path;
                        } elsif ( ! -e $cache_path ) {
                                my $image = Graphics::Magick->new( magick => 'jpg' );
@@ -277,7 +277,7 @@ sub serve_path {
        my @page_files;
 
     for my $basename (sort { $a cmp $b } @children) {
-               push @page_files, $basename if $basename =~ m/\.jpg$/;
+               push @page_files, $basename if $basename =~ m/\.(jpg|gif)$/;
         my $file = "$path/$basename";
         my $url = $dir_url . $basename;