diff options
| -rw-r--r-- | lib/rack/utils.rb | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/lib/rack/utils.rb b/lib/rack/utils.rb index 0023dd2a..5e1a3521 100644 --- a/lib/rack/utils.rb +++ b/lib/rack/utils.rb @@ -420,9 +420,16 @@ module Rack end def self.normalize(headers) - headers.transform_keys do |key| - key.downcase + # headers.transform_keys do |key| + # key.downcase + # end + + # Use transform_keys after dropping Ruby 2.4 support + hash = {} + headers.each do |key, value| + hash[key.downcase] = value end + hash end end |