[Live Components][Form][File uploading] There are no files sent

[GrinWay]

Description:
I've attached 1 min video below, but I'll describe it:
When I use Live form I can't send a file (and it's not important if I use symfony binary web server or docker) but I do everything what described in the docs about Live Form File Uploading.

Reproduce:

1. Installation https://github.com/GrinWay/media-processor/blob/main/docs/installation.md
2. Run dev using symfony binary: https://github.com/GrinWay/media-processor/blob/main/docs/dev-run.md
   or in a docker container: https://github.com/GrinWay/media-processor/blob/main/docs/up.md
3. Download and watch this 1 min video https://github.com/GrinWay/media-processor/blob/main/reports/Symfony%20live%20form%20bug%20report.mp4

Details:
The whole project with this problem: https://github.com/GrinWay/media-processor/tree/main
Symfony 7.3.0
PHP 8.2.28 (cli) (built: Mar 11 2025 18:37:34) (NTS Visual C++ 2019 x64)
Copyright (c) The PHP Group
Zend Engine v4.2.28, Copyright (c) Zend Technologies
with Zend OPcache v8.2.28, Copyright (c), by Zend Technologies
with Xdebug v3.4.3, Copyright (c) 2002-2025, by Derick Rethans

[smnandre]

You used files(media[]) in your modifier, but this is not the name of your file input :)

You can add dump($request->files) at the beginning of your save action.

[GrinWay]

OMG...
You're right we can obtain this data via request using

$request->files->all('media_processor')['media'] ?? [];

But unfortunately I was not able to obtain all the data via

#[MapUploadedFile(name: 'media')]
UploadedFile ...$media