How to ignore connection closed before message completed

[MrMarble]

Hi, I'm writing an API client using reqwest, and I'm facing the error connection closed before message completed in one of the endpoints, I don't have control on the server, so can't really do much there.

Here's the snippet of code that is causing the error https://github.com/MrMarble/zte-modem/blob/849ea7fe5724f1c710e0e61d790ae8fbd4c4d8f7/src/lib.rs#L51-L60 and how I'm creating the client https://github.com/MrMarble/zte-modem/blob/849ea7fe5724f1c710e0e61d790ae8fbd4c4d8f7/src/lib.rs#L32-L37

Enabling verbose output, I can see that the server responds successfully but reqwest is returning the error:

[2024-11-24T09:20:50Z DEBUG reqwest::connect] starting new connection: http://192.168.0.1/
[2024-11-24T09:20:50Z TRACE reqwest::connect::verbose] 3b849e4b write (vectored): b"POST /goform/goform_set_cmd_process HTTP/1.1\r\ncontent-type: application/x-www-form-urlencoded\r\naccept: application/json, text/javascript, */*; q=0.01\r\nreferer: http://192.168.0.1/index.html\r\nhost: 192.168.0.1\r\ncontent-length: 101\r\n\r\n"b"isTest=false&goformId=LOGIN&password=<REDACTED>"
[2024-11-24T09:20:50Z TRACE reqwest::connect::verbose] 3b849e4b read: b"HTTP/1.0 200 OK\n"
[2024-11-24T09:20:50Z TRACE reqwest::connect::verbose] 3b849e4b read: b"Pragma: no-cache\r\nCache-control: no-cache\r\nContent-Type: text/html\r\nX-Frame-Options: sameorigin\r\nX-XSS-Protection: 1; mode=block\r\nSet-Cookie: stok=<REDACTED>;path=/;HttpOnly=1;Expires=Mon, 1 Jan 2050 00:00:00 GMT\n\r\n{\"result\":\"0\"}"
[2024-11-24T09:20:50Z TRACE reqwest::connect::verbose] 3b849e4b read: b""
Error: error sending request for url (http://192.168.0.1/goform/goform_set_cmd_process)

Caused by:
    0: client error (SendRequest)
    1: connection closed before message completed

The 2 redacted fields are hashes, no strange caracters

Running the same request through cURL or in a python script works, reqwest is the only one that returns the error.
I've already tried to enable all the .http1_xxx configurations and none worked

[MrMarble]

For the record, I've moved from reqwest to ureq and everything works, even if the problem is on the server (which probably it is), reqwest does something different while validating the connection, preventing it from working