Why does laravel remove files from redirect session?

[cmd-deploy]

Hi, I am new to using laravel. I am trying to implement validation on a form with files. It has been a rather enlightening journey finding out how FormRequest work behind the scenes. Currently I am using a different session key to store instances of Illuminate\Http\UploadedFile instead of the built in flash storage. If possible I want to store all the validation info under the same key (_old_input) when the validator instance fails and I am redirected back. Upon trying to create the response object necessary to achieve this, I was surprised that files are cleaned out of the session. I want to understand the motivation behind why it is implemented as such.

// in illuminate/Http/RedirectResponse.php

public function withInput(array $input = null)
    {
        $this->session->flashInput($this->removeFilesFromInput(
            ! is_null($input) ? $input : $this->request->input()
        ));

        return $this;
    }

[robert-moore96]

#6833
#6196

looks like there were errors trying to serialize file inputs and the fix was to filter them out, that was a long time ago though (laravel 4.2 days :p )