adapt make-error-response:

- no URI header field in 1.1
- new 30x status codes in 1.1

scheme/httpd/response.scm

@@ -173,20 +173,22 @@
 			   (make-writer-body writer-proc)))))
 
     (cond
-     ;; This error response requires two args: message is the new URI: field,
-     ;; and the first EXTRA is the older Location: field.
-     ((or (eq? code (status-code moved-temp))
-	  (eq? code (status-code moved-perm)))
+     ;; This error response requires one arg:
+     ;; message is the Location field. 
+     ;; the Location field's field value must be a single absolute URI
+     ((or (eq? code (status-code found));302
+	  (eq? code (status-code see-other));303
+	  (eq? code (status-code temp-redirect));307
+	  (eq? code (status-code moved-perm)));301
       (create-response
-       (list (cons 'uri message)
-	     (cons 'location (car extras)))
+       (list (cons 'location message))
        (lambda (port options)
 	 (title-html port "Document moved")
 	 (format port
 		 "This document has ~A moved to a <A HREF=\"~A\">new location</A>.~%"
-		 (if (eq? code (status-code moved-temp))
-		     "temporarily"
-		     "permanently")
+		 (if (eq? code (status-code moved-perm))
+		     "permanently"
+		     "temporarily")
 		 message)
 	 (close-html port))))
 
@@ -290,7 +292,7 @@ response of a gateway.~%")
 ;; the browser won't notice the redirect. Thus, it will keep the
 ;; original URL. For "real" redirections, use 
 ;; (make-error-response (status-code moved-perm) req 
-;;                      "new-location" "new-location").
+;;                      "new-location").
 (define (make-redirect-response new-location)
   (make-response
    (status-code redirect)