Custom domain name for Spaces shows list of all files

I currently have a DigitalOcean Space for Object Storage in which I store pictures. Access to the files is set to Restricted in the admin panel, so when I go to myproject.ams3.digitaloceanspaces.com, I recieve the “Permission Denied” message as expected. However, I followed this guide to route files.myproject.com over a secure connection (https). This works flawlessly and routes https://files.myproject.com/image.jpg to the image in my Space.

However, the problem is, when I go to files.myproject.com, I can see a list of all the files, similarly to what I see when I set the access to “Public” in my admin panel. However it seems to be an index created by AWS. I use node.js to upload using S3 but I don’t think that’s causing this to show up?

<ListBucketResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
<Name>myproject</Name>
<Prefix/>
<Marker/>
<MaxKeys>1000</MaxKeys>
<IsTruncated>false</IsTruncated>
<Contents>
<Key>image.jpg</Key>
<LastModified>2019-02-25T15:20:18.675Z</LastModified>
<ETag>"*******"</ETag>
<Size>294316</Size>
<StorageClass>STANDARD</StorageClass>
<Owner>
<ID>********</ID>
<DisplayName>********</DisplayName>
</Owner>
</Contents>

If someone could point me in the right direction as to how to hide those files… that would be nice!