direct image upload to amazon returns syntax error

I am using CarrierWave to upload files to amazon, which works fine. But I am trying to implement CarrierWaveDirect to upload pictures directly to Amazon S3. I added CORS to amazon S3 as below:

<?xml version="1.0" encoding="UTF-8"?>
<CORSConfiguration xmlns="http://ift.tt/111A788">
<CORSRule>
    <AllowedOrigin>http://localhost:3000</AllowedOrigin>
    <AllowedMethod>GET</AllowedMethod>
    <AllowedMethod>POST</AllowedMethod>
    <AllowedMethod>PUT</AllowedMethod>
    <MaxAgeSeconds>3000</MaxAgeSeconds>
    <AllowedHeader>*</AllowedHeader>
</CORSRule>

but when I try to save images to amazon, it returns an error

SyntaxError: syntax error
    <?xml version="1.0" encoding="UTF-8"?>

What does that error mean and how to fix it?