lib/sanitize.rb in sanitize-4.6.1 vs lib/sanitize.rb in sanitize-4.6.2

@@ -196,11 +196,11 @@
 
       # Only replace the content-type meta tag if <meta> isn't whitelisted or
       # the original document didn't actually include a content-type meta tag.
       replace_meta = !@config[:elements].include?('meta') ||
         node.xpath('/html/head/meta[@http-equiv]').none? do |meta|
-          meta['http-equiv'].downcase == 'content-type'
+          meta['http-equiv'].casecmp('content-type').zero?
         end
     end
 
     so = Nokogiri::XML::Node::SaveOptions
 
@@ -215,15 +215,17 @@
     html.gsub!(regex_meta, '\1') if replace_meta
     html
   end
 
   def transform_node!(node, node_whitelist)
+    node_name = node.name.downcase
+
     @transformers.each do |transformer|
       result = transformer.call(
         :config         => @config,
         :is_whitelisted => node_whitelist.include?(node),
         :node           => node,
-        :node_name      => node.name.downcase,
+        :node_name      => node_name,
         :node_whitelist => node_whitelist
       )
 
       if result.is_a?(Hash) && result[:node_whitelist].respond_to?(:each)
         node_whitelist.merge(result[:node_whitelist])