xml+atom だった時に、charset utf-8にする

Author: kfly8

Diff for: script/app.psgi

@@ -6,5 +6,15 @@ builder {
         s!/([^\.]+)$!/$1/!;
         s!(.*/$)!$1/index.html! or return qr{^/.+};
     },
+    content_type => sub {
+        my $file = shift;
+        my $content_type = Plack::MIME->mime_type($file) || 'text/plain';
+
+        if ($content_type eq 'application/atom+xml') {
+            $content_type .= "; charset=utf-8";
+        }
+
+        return $content_type;
+    },
     root => './public/';
 };