Laravel mimetypes:application/zip passes linux but not widows!

Hi everyone. I have a rare situation. I am building a Laravel - Vue application on Ubuntu20.04. I upload an application/zip file using axios through following method:

<script>
import axios from "axios"
export default {
  name:'Application',
  methods:{
    upload_file(event){
      const file = event.target.files[0];
      var formdata = new FormData()
      formdata.set('file', file)
      axios.post('upload', formdata).then((res)=>{
        res = res.data;
      })
    }
  }
}
</script>

 public function upload(Request $req){
        $validator = Validator::make($req->all(), [
            'file'=>['required', 'mimetypes:application/zip'],
        ]);
        if($validator->fails()){
            return $validator->errors();
        }
        return 'okay';
    }

Now the weird part is that I can upload application/zip file easily and Laravel grants mimetypes:application/zip rule. But when I tried it on multiple windows OSs, Laravel rejects request like "select application/zip file"!! I am uploading the same application/zip file on windows and linux but windows not working! Can anybody help? Thank you in advance