added etag

diff --git a/plack/bookreader.psgi b/plack/bookreader.psgi
index 3181ff8..f8b4371 100644 (file)
--- a/plack/bookreader.psgi
+++ b/plack/bookreader.psgi
@@ -19,6 +19,9 @@ builder {
 
        enable 'StackTrace';
 
+       enable "ConditionalGET";
+       enable "Plack::Middleware::ETag", file_etag => [ "inode", "size", "mtime" ];
+
        mount '/BookReader' =>
                Plack::App::Directory->new({ root => "../BookReader" })->to_app;