Laravel validation problem with uploaded image

Hello ,

I upload an image using FormData()(Javascript side) when I try to make a validation it's not working !

        $request->validate([
            'companiesLogos' => 'required|image|size:512',
        ]);

The validation error returns "The companies logos must be an image." even when I upload an image !

When I dd(request()->file('companiesLogos') the result is :

Illuminate\Http\UploadedFile {#1548
  -test: false
  -originalName: "5C51E427-1715-44E6-9B14D9487D7B7F2D_source.jpg"
  -mimeType: "image/jpeg"
  -error: 0
  #hashName: null
  path: "/tmp"
  filename: "phpEwa4h8"
  basename: "phpEwa4h8"
  pathname: "/tmp/phpEwa4h8"
  extension: ""
  realPath: "/tmp/phpEwa4h8"
  aTime: 2021-02-25 14:59:14
  mTime: 2021-02-25 14:59:14
  cTime: 2021-02-25 14:59:14
  inode: 917514
  size: 388750
  perms: 0100600
  owner: 1000
  group: 1000
  type: "file"
  writable: true
  readable: true
  executable: false
  file: true
  dir: false
  link: false
}

Any suggestion?