mailer.rb in roda-3.70.0

- old
+ new

@@ -184,11 +184,11 @@
         # to the email, as well as adding the response body to the email.
         # Return the email unless no body was set for it, which would indicate
         # that the routing tree did not handle the request.
         def finish
           if m = mail
-            header_content_type = @headers.delete('Content-Type')
+            header_content_type = @headers.delete(RodaResponseHeaders::CONTENT_TYPE)
             m.headers(@headers)
             m.body(@body.join) unless @body.empty?
             mail_attachments.each do |a, block|
               m.add_file(*a)
               block.call if block
@@ -239,10 +239,10 @@
         def initialize(env)
           super
           if mail = env['roda.mail']
             res = @_response
             res.mail = mail
-            res.headers.delete('Content-Type')
+            res.headers.delete(RodaResponseHeaders::CONTENT_TYPE)
           end
         end
 
         # Delay adding a file to the message until after the message body has been set.
         # If a block is given, the block is called after the file has been added, and you