AWS services or capabilities described in AWS Documentation may vary by region/location. Click Getting Started with Amazon AWS to see specific differences applicable to the China (Beijing) Region.
            This operation is not supported for directory buckets.
            
Returns the Cross-Origin Resource Sharing (CORS) configuration information set for the bucket.
             To use this operation, you must have permission to perform the s3:GetBucketCORS
            action. By default, the bucket owner has this permission and can grant it to others.
            
When you use this API operation with an access point, provide the alias of the access point in place of the bucket name.
            When you use this API operation with an Object Lambda access point, provide the alias
            of the Object Lambda access point in place of the bucket name. If the Object Lambda
            access point alias in a request is not valid, the error code InvalidAccessPointAliasError
            is returned. For more information about InvalidAccessPointAliasError, see List
            of Error Codes.
            
For more information about CORS, see Enabling Cross-Origin Resource Sharing.
            The following operations are related to GetBucketCors:
            
            You must URL encode any signed header values that contain spaces. For example, if
            your header value is my file.txt, containing two spaces after my, you
            must URL encode this value to my%20%20file.txt.
            
For .NET Core this operation is only available in asynchronous form. Please refer to GetCORSConfigurationAsync.
Namespace: Amazon.S3
Assembly: AWSSDK.S3.dll
Version: 3.x.y.z
public abstract GetCORSConfigurationResponse GetCORSConfiguration( String bucketName )
The bucket name for which to get the cors configuration. When you use this API operation with an access point, provide the alias of the access point in place of the bucket name. When you use this API operation with an Object Lambda access point, provide the alias of the Object Lambda access point in place of the bucket name. If the Object Lambda access point alias in a request is not valid, the error code InvalidAccessPointAliasError is returned. For more information about InvalidAccessPointAliasError, see List of Error Codes.
.NET Framework: 
Supported in: 4.5 and newer, 3.5