lib/softcover/sanitizer.rb in softcover-1.2.12 vs lib/softcover/sanitizer.rb in softcover-1.2.13

@@ -16,10 +16,10 @@
                      pre em sup table tbody thead tr td img code strong
                      blockquote small},
         remove_contents: %w{script},
         attributes: {
           'div' => %w{id class data-tralics-id data-number data-chapter},
-          'a'    => %w{id class href target},
+          'a'    => %w{id class href target rel},
           'span' => %w{id class style},
           'ol'   => %w{id class},
           'ul'   => %w{id class},
           'li'   => %w{id class},
           'sup'  => %w{id class},