diff --git a/src/http_ana.c b/src/http_ana.c
index 6ff6ada..e6a43ea 100644
--- a/src/http_ana.c
+++ b/src/http_ana.c
@@ -3174,6 +3174,10 @@
 	struct session *sess = s->sess;
 	enum rule_result ret = HTTP_RULE_RES_CONT;
 
+	/* Eval after-response ruleset only if the reply is not const */
+	if (s->txn->flags & TX_CONST_REPLY)
+		goto end;
+
 	/* prune the request variables if not already done and swap to the response variables. */
 	if (s->vars_reqres.scope != SCOPE_RES) {
 		if (!LIST_ISEMPTY(&s->vars_reqres.head))
@@ -3185,6 +3189,7 @@
 	if ((ret == HTTP_RULE_RES_CONT || ret == HTTP_RULE_RES_STOP) && sess->fe != s->be)
 		ret = http_res_get_intercept_rule(sess->fe, &sess->fe->http_after_res_rules, s);
 
+  end:
 	/* All other codes than CONTINUE, STOP or DONE are forbidden */
 	return (ret == HTTP_RULE_RES_CONT || ret == HTTP_RULE_RES_STOP || ret == HTTP_RULE_RES_DONE);
 }
@@ -4591,9 +4596,8 @@
 /* Forward a response generated by HAProxy (error/redirect/return). This
  * function forwards all pending incoming data. If <final> is set to 0, nothing
  * more is performed. It is used for 1xx informational messages. Otherwise, the
- * transaction is terminated and the request is emptied. if <final> is greater
- * than 1, it means after-response ruleset must not be evaluated. On success 1
- * is returned. If an error occurred, 0 is returned.
+ * transaction is terminated and the request is emptied. On success 1 is
+ * returned. If an error occurred, 0 is returned.
  */
 int http_forward_proxy_resp(struct stream *s, int final)
 {
@@ -4604,7 +4608,8 @@
 
 	if (final) {
 		htx->flags |= HTX_FL_PROXY_RESP;
-		if (final == 1 && !http_eval_after_res_rules(s))
+
+		if (!http_eval_after_res_rules(s))
 			return 0;
 
 		channel_auto_read(req);
@@ -4637,9 +4642,6 @@
 
 void http_reply_and_close(struct stream *s, short status, const struct buffer *msg)
 {
-	int final = 1;
-
-  retry:
 	channel_auto_read(&s->req);
 	channel_abort(&s->req);
 	channel_auto_close(&s->req);
@@ -4661,17 +4663,17 @@
 		FLT_STRM_CB(s, flt_http_reply(s, s->txn->status, msg));
 		htx = htx_from_buf(&chn->buf);
 		if (channel_htx_copy_msg(chn, htx, msg)) {
-			if (!http_forward_proxy_resp(s, final)) {
+			if (!http_forward_proxy_resp(s,  1)) {
 				/* On error, return a 500 error message, but
 				 * don't rewrite it if it is already an internal
 				 * error.
 				 */
 				if (s->txn->status == 500)
-					final++;
+					s->txn->flags |= TX_CONST_REPLY;
 				s->txn->status = 500;
-				msg = http_error_message(s);
-				goto retry;
-			}
+				s->txn->errmsg = NULL;
+				return http_reply_and_close(s, s->txn->status, http_error_message(s));
+                       }
 		}
 	}
 }