return_only_media_type_on_content_type=

# File actionpack/lib/action_dispatch/http/response.rb, line 89
    def self.return_only_media_type_on_content_type=(*)
      ActiveSupport::Deprecation.warn(
        ".return_only_media_type_on_content_type= is dreprecated with no replacement and will be removed in 6.2."
      )
    end