lib/rack/auth/abstract/handler.rb in rack-2.2.10 vs lib/rack/auth/abstract/handler.rb in rack-3.0.0.beta1

@@ -1,7 +1,9 @@
 # frozen_string_literal: true
 
+require_relative '../../constants'
+
 module Rack
   module Auth
     # Rack::Auth::AbstractHandler implements common authentication functionality.
     #
     # +realm+ should be set for all handlers.
@@ -19,10 +21,10 @@
 
       def unauthorized(www_authenticate = challenge)
         return [ 401,
           { CONTENT_TYPE => 'text/plain',
             CONTENT_LENGTH => '0',
-            'WWW-Authenticate' => www_authenticate.to_s },
+            'www-authenticate' => www_authenticate.to_s },
           []
         ]
       end
 
       def bad_request