{
  "Type" : "AWS::S3::BucketPolicy",
  "Properties" : {
    "Bucket" : {"Ref" : "myExampleBucket"},
    "PolicyDocument": {
      "Statement":[{
      "Action":["s3:GetObject"],
      "Effect":"Allow",
      "Resource": { "Fn::Join" : ["", ["arn:aws:s3:::", { "Ref" : "myExampleBucket" } , "/*" ]]},
      "Principal":"*",
        "Condition":{
          "StringLike":{
            "aws:Referer":[
              "http://www.example.com/*",
              "http://example.com/*"
            ]
          }
        }
      }]
    }
  }
}