diff -up cups-1.4rc1/cups/request.c.str3231 cups-1.4rc1/cups/request.c
--- cups-1.4rc1/cups/request.c.str3231	2009-06-29 10:07:23.568486428 +0100
+++ cups-1.4rc1/cups/request.c	2009-06-29 10:07:44.867219805 +0100
@@ -266,9 +266,9 @@ cupsDoIORequest(http_t     *http,	/* I -
 
     DEBUG_printf(("2cupsDoIORequest: status=%d", status));
 
-    if (status == HTTP_FORBIDDEN || status == HTTP_ERROR ||
-	status >= HTTP_SERVER_ERROR)
+    if (status == HTTP_FORBIDDEN || status >= HTTP_SERVER_ERROR)
     {
+      httpFlush(http);
       _cupsSetHTTPError(status);
       break;
     }
diff -up cups-1.4rc1/cups/http.c.length cups-1.4rc1/cups/http.c
--- cups-1.4rc1/cups/http.c.length	2009-07-01 12:00:16.591298309 +0100
+++ cups-1.4rc1/cups/http.c	2009-07-01 12:00:43.494298468 +0100
@@ -3143,6 +3145,8 @@ http_upgrade(http_t *http)		/* I - Conne
 
   DEBUG_printf(("7http_upgrade(%p)", http));
 
+  httpFlush(http);
+
  /*
   * Copy the HTTP data to a local variable so we can do the OPTIONS
   * request without interfering with the existing request data...
@@ -3170,8 +3174,6 @@ http_upgrade(http_t *http)		/* I - Conne
     while (httpUpdate(http) == HTTP_CONTINUE);
   }
 
-  httpFlush(http);
-
  /*
   * Restore the HTTP request data...
   */