'Operation timed out' with POST requests and Caddy (Webserver)

[Bara]

I've some weird issue with RIPExt (1.2.3) and Caddy (2.3 and 2.4).

GET requests (as example) works fine, but when I've trying to use POST requests I always get 0 as response code with Operation timed out as error. Full error: HTTP Status Code: 0, Error: Operation timed out after 30015 milliseconds with 0 bytes received

What I tested:
nginx and Caddy as webservers in combination with php7.4 and php8.0 with/out JIT enabled. It works fine with nginx and any php versions, but caddy won't work. To confirm this, I rented another vserver by a different hoster and location. Same results.

My Caddyfile:

domain.tld {
    php_fastcgi unix//run/php/php8.0-fpm.sock

    root * /path/to/public/folder

    rewrite * /index.php?{query}

    encode zstd gzip
}

But(!) Caddy seems not the root cause, because POST requests works fine with Insomnia, but not with https://reqbin.com/.

So, reqbin and ripext in combination with caddy as webserver won't work. I'm still not sure where is the issue, but it seems related to curl.

[Kxnrl]

if post and server return http 307, same timeout

[ErikMinekus]

Unless someone can share a Docker setup with Caddy and php-fpm, it will be difficult for me to debug, but if you tell me if your game server is running Linux or Windows, I can provide a debug build of ripext.

if post and server return http 307, same timeout

I can't reproduce this with a POST to https://httpbin.org/status/307 on a Linux game server. Do you have any more details?

[Bara]

Unless someone can share a Docker setup with Caddy and php-fpm

I'm not really familiar with Docker. 🤔

but if you tell me if your game server is running Linux or Windows, I can provide a debug build of ripext.

Generally I use Linux for gameservers.

[ErikMinekus]

I got Caddy 2.4 and php-fpm 7.4 to run in Docker, but I am unable to reproduce the issue.

Here's a debug build based on ripext 1.3, which prints everything cURL does to the server console: rip.ext.so.zip

[Bara]

but I am unable to reproduce the issue.

Same it currently works (reqbin and extension), probably it was fixed with cURL 7.75 update ( 1ee4aa8 ).

But I'll still use the debug version, maybe the bug comes back.

[Bara]

Tested it today again and seems still happening and now with the debug build.

get response: https://hastebin.com/ugadesudog.yaml
post response (with error): https://hastebin.com/zokegifexo.yaml

It also freeze my caddy webserver and can't stop it with caddy stop.

Caddy Version: 2.4.5

[Kxnrl]

got same bug with nginx 1.21.5 + rip 1.3.1 (windows)
if I turn off http2 on nginx, got client sent invalid chunked body error