Fix mail_to

middleman-more/lib/middleman-more/core_extensions/default_helpers.rb

@@ -133,8 +133,8 @@ module Middleman
               uri = URI(url)
               url_path = uri.path
 
+              if url_path
                 path = Pathname(url_path)
-
                 url_path = current_source_dir.join(path).to_s if path.relative?
 
                 resource = sitemap.find_resource_by_path(url_path)
@@ -170,6 +170,7 @@ module Middleman
                 end
               end
             end
+          end
 
           super(*args, &block)
         end