Provide default values if the CGI script fails to provide status or

content-type.

scheme/httpd/cgi-server.scm

@@ -240,8 +240,14 @@
   (let* ((headers (read-rfc822-headers script-port))
 	 (ctype (get-header headers 'content-type))
 	 (loc   (get-header headers 'location))
-	 (stat  (extract-status-code-and-text (get-header headers 'status)
-					      req))
+	 (stat (cond ((get-header headers 'status)
+		      => (lambda (code.text)
+			   (extract-status-code-and-text code.text
+							 req)))
+		     (else
+		      (http-syslog (syslog-level notice) 
+				   "CGI script didn't generate status header.")
+		      200)))
 	 (extra-headers (delete-headers (delete-headers (delete-headers headers
 									'content-type)
 							'location)
@@ -261,7 +267,7 @@
 	 (number->status-code (car stat))
 	 (cdr stat)			; text
 	 (time)
-	 ctype
+	 (or ctype "text/html")
 	 extra-headers
 	 (make-writer-body
 	  (lambda (out options)
@@ -271,11 +277,7 @@
 (define (get-header headers tag)
   (cond
    ((assq tag headers) => cdr)
-   (else
-    (http-error (status-code bad-gateway) #f
-		(string-append "CGI script didn't generate "
-			       (symbol->string tag)
-			       " header")))))
+   (else #f)))
 
 (define (delete-headers headers tag)
   (alist-delete tag headers))