title: base64 image corrupted uploading to S3
body: <pre><code>router.post('/image', multipartMiddleware , function(req, res) {
  
     var file_name = req.body.name;
     var data = req.body.data;
  
     return s3fsImpl.writeFile(file_name , data , 'base64').then(function (err) { 
  
          res.status(200).end();
      });
  
  });
  </code></pre>
  
  <p>What's wrong in my code above? There's no error in my therminal, I have the file in my s3 but it's corrupted when I download it.</p>