try this one, there was a syntax error
{
“Version”: “2012-10-17”,
“Id”: “http referer policy example”,
“Statement”: [
{
“Sid”: “”,
“Effect”: “Allow”,
“Principal”: {
“AWS”: “arn:aws:iam::034761183699:role/Cognito_JamSceneUnauth_Role”
},
“Action”: “s3:",
“Resource”: [
"arn:aws:s3:::jamscene/”
]
},
{
“Sid”: “AddPerm”,
“Effect”: “Allow”,
“Principal”: “",
“Action”: [
“s3:GetObject”
],
“Resource”: [
"arn:aws:s3:::jamscene/”
]
}
]
}