From c46b4ad7a405a6d316e846219867591ae47d59ba Mon Sep 17 00:00:00 2001
From: Dmitry Volyntsev <xeioex@nginx.com>
Date: Fri, 20 Mar 2020 17:33:10 +0300
Subject: [PATCH] HTTP: returning undefined value when "responseBody" is
 unavailable.

Missed in b758915e2406.
---
 nginx/ngx_http_js_module.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/nginx/ngx_http_js_module.c b/nginx/ngx_http_js_module.c
index a286be9c..1db43ed9 100644
--- a/nginx/ngx_http_js_module.c
+++ b/nginx/ngx_http_js_module.c
@@ -2196,7 +2196,12 @@ ngx_http_js_ext_get_response_body(njs_vm_t *vm, njs_object_prop_t *prop,
 
     b = r->out ? r->out->buf : NULL;
 
-    len = b ? b->last - b->pos : 0;
+    if (b == NULL) {
+        njs_value_undefined_set(retval);
+        return NJS_OK;
+    }
+
+    len = b->last - b->pos;
 
     p = njs_vm_value_string_alloc(vm, retval, len);
     if (p == NULL) {
-- 
2.47.3