[njs] Modules: fixed Respose.headers getter in fetch API.

[Dmitry Volyntsev]

details:   https://hg.nginx.org/njs/rev/6545769f30bf
branches:  
changeset: 1725:6545769f30bf
user:      Dmitry Volyntsev <xeioex at nginx.com>
date:      Thu Oct 14 17:16:10 2021 +0000
description:
Modules: fixed Respose.headers getter in fetch API.

The issue manifested itself when Response object is dumped using
JSON.stringify() or njs.dump().  The Response headers were dumped
as "null" values.

diffstat:

 nginx/ngx_js_fetch.c |  3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)

diffs (13 lines):

diff -r 9502fed1bd6b -r 6545769f30bf nginx/ngx_js_fetch.c
--- a/nginx/ngx_js_fetch.c	Thu Oct 14 15:18:47 2021 +0000
+++ b/nginx/ngx_js_fetch.c	Thu Oct 14 17:16:10 2021 +0000
@@ -2207,8 +2207,7 @@ ngx_response_js_ext_header(njs_vm_t *vm,
         return NJS_ERROR;
     }
 
-    return ngx_response_js_ext_header_get(vm, value, &name, njs_vm_retval(vm),
-                                          0);
+    return ngx_response_js_ext_header_get(vm, value, &name, retval, 0);
 }