Oops, forgot call_next(context) on Kemal::InitHandler

src/kemal/init_handler.cr

@@ -7,6 +7,7 @@ module Kemal
     def call(context)
       context.response.content_type = "text/html"
       context.response.headers.add "X-Powered-By", "Kemal"
+      call_next context
     end
   end
 end