aws 资源设置可匿名访问，不能访问的问题

[yangxh101]

在存储桶上配置了策略

{
"Version": "2008-10-17",
"Id": "Policy1428559320591",
"Statement": [
{
"Sid": "Stmt1428559309270",
"Effect": "Allow",
"Principal": "*",
"Action": "s3:GetObject",
"Resource": "arn:aws-cn:s3:::cnctestbucket/*"
}
]
}

资源权限上也授权所有人可以查看，

在浏览器点解资源链接时，一直提示：

You are not authorized to perform this operation

应该怎么配置呢？谢谢！