ERR_CONTENT_LENGTH_MISMATCH while sending a long text

[imzlh]

Describe the bug

When I try to send a long string(JSON.stringify), the browser reports an error

To reproduce

Steps to reproduce the behavior:

NJS:
Here: https://github.com/imzlh/vlist-njs/blob/master/main.ts#L429

CURL:

*   Trying 192.168.1.1:81...
* Connected to 192.168.1.1 (192.168.1.1) port 81
> POST /@api/?action=slist HTTP/1.1
> Host: 192.168.1.1:81
> User-Agent: curl/8.5.0
> Accept: */*
> Content-Length: 26
> Content-Type: application/x-www-form-urlencoded
>
} [26 bytes data]
< HTTP/1.1 200 OK
< Server: nginx
< Date: Sat, 13 Jul 2024 11:16:55 GMT
< Content-Type: application/json; charset=utf-8
< Content-Length: 33829
< Connection: keep-alive
< Alt-Svc: h3=":444"; h2=":8443"; ma=86400
< Access-Control-Allow-Origin: *
< Access-Control-Allow-Headers: Content-Type, Authorization
<
{ [3798 bytes data]
* transfer closed with 6387 bytes remaining to read
 81 33855   81 27442  100    26   337k    327 --:--:-- --:--:-- --:--:--  339k
* Closing connection
curl: (18) transfer closed with 6387 bytes remaining to read

Expected behavior

Complete JSON string

Your environment

• Version of njs or specific commit: 0.8.5
• Version of NGINX if applicable: nginx/1.27.0
• List of other enabled nginx modules if applicable
  configure arguments: --prefix=/usr/local/osgi/ --sbin-path=bin/ --modules-path=lib/nginx/ --conf-path=etc/nginx/nginx.conf --error-log-path=/tmp/nginx/error.log --pid-path=/tmp/nginx/.pid --lock-path=/tmp/nginx/.lock --user=daemon --group=daemon --build='for ARMRounger' --without-poll_module --without-http_ssi_module --without-http_userid_module --without-http_mirror_module --without-http_geo_module --without-http_map_module --without-http_split_clients_module --without-http_uwsgi_module --without-http_grpc_module --without-http_memcached_module --without-http_empty_gif_module --without-http_browser_module --without-http_upstream_hash_module --without-http_upstream_ip_hash_module --without-http_upstream_least_conn_module --without-http_upstream_random_module --without-http_upstream_keepalive_module --without-http_upstream_zone_module --http-log-path=/tmp/nginx/log.log --http-client-body-temp-path=/tmp/nginx/body --http-proxy-temp-path=/tmp/nginx/proxy --http-fastcgi-temp-path=/tmp/nginx/fcgi --http-scgi-temp-path=/tmp/nginx/scgi --with-cc=armv7m-linux-musleabi-gcc --with-cpp=armv7m-linux-musleabi-gcc-g++ --add-module=../njs/nginx/ --add-module=dav --with-http_dav_module --with-zlib=../zlib-1.3.1 --with-http_v2_module --with-http_v3_module --add-module=fancyindex --with-ld-opt='-static -s -w'
• OS: Linux 4.1.25 #3 SMP PREEMPT Fri Apr 7 01:40:44 UTC 2023 armv7l GNU/Linux

[xeioex]

Hi @imzlh,

Can you please minimize the code so I can reproduce the issue? Also please share the minimal nginx.conf.

[imzlh]

minal version:

• nginx.conf

   js_import                               /usr/local/osgi/lib/nginx/vlist.js;
               location = /@api/{
                       js_var                  $authkey "....";
                       js_content              vlist.main;
               }
  

• vlist.js

  return h.return(200, JSON.stringify(res));

• nginx extension
  fancyindex
  dav
  njs
  [built-in: http2 http3 ssl]
• question
  ERR_CONTENT_LENGTH_MISMATCH