How to set the Referer bucket policy in spaces?

My digitalocean space bucket is located at singapore ( sgp1.digitaloceanspaces.com) and i have updated following policy to it. it applied successfully.

{ “Statement”: [ { “Effect”: “Allow”, “Principal”: “", “Action”: “s3:GetObject”, “Resource”: [ “arn:aws:s3:::chathuranga”, "arn:aws:s3:::chathuranga/”, ] “Condition”: { “StringLike”: { “aws:Referer”: [ “http://chathuranga.com/*” ] } } } ] }

command

s3cmd setpolicy policy.json s3://chathuranga

Expected behaviour

If i am accessing the content outside the chathuranga.com, it should deny.

Current behaviour

The content can be access from any domain.

Can anyone suggest what is wrong here? I have created the another bucket in nyc3.digitaloceanspaces.com and did the same. same result.

Thanks