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# Type of request: This is a ...

[x] bug report
[ ] feature request

# Detailed description

Using node.js AWS SDK function `getObject` returns object with `0` bytes using 4566 port. 
On port 4572 it works fine.

# Steps to reproduce

## Command used to start LocalStack

```
  localstack:
    image: localstack/localstack
    networks:
      - localstack-network
    ports:
      - 4566:4566
      - 4572:4572
      - 8080:8080
    environment:
      - DEBUG=1
      - HOSTNAME_EXTERNAL=localstack
      - SERVICES=sqs,lambda,cloudwatch,s3,iam,ec2,stepfunctions,cloudwatchlogs
      - LAMBDA_REMOTE_DOCKER=false
      - LAMBDA_EXECUTOR=docker
      - LAMBDA_DOCKER_NETWORK=localstack-network
      - AWS_ACCESS_KEY_ID=123
      - AWS_SECRET_ACCESS_KEY=xyz
      - DEFAULT_REGION=us-east-1
      - DOCKER_HOST=unix:///var/run/docker.sock
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - /tmp/localstack:/tmp/localstack
```

## Client code (AWS SDK code snippet, or sequence of "awslocal" commands)

```
export const s3 = new AWS.S3({
  endpoint: `http://localhost:4566`,
  s3ForcePathStyle: true,
  sslEnabled: false
});

const { Body } = await s3.getObject({
 Bucket: 'bucket',
 Key: 'file.json'
}).promise();
```
data = self.data_bytes
        path = self.path
        forward_headers = CaseInsensitiveDict(self.headers)
        
        connection_header = forward_headers.get('Connection') or ''
        if connection_header.lower() not in ['keep-alive', '']:
            self.close_connection = 1
        client_address = self.client_address[0]
        server_address = ':'.join(map(str, self.server.server_address))
        try:
            
            response = modify_and_forward(method=method, path=path, data_bytes=data,
                headers=forward_headers, forward_base_url=self.proxy.forward_base_url,
                listeners=self._listeners(), request_handler=self,
                client_address=client_address, server_address=server_address)
            
            self.send_response(response.status_code)
            
            is_chunked = uses_chunked_encoding(response)
            if is_chunked:
                response._content = create_chunked_data(response._content)
            
            content_length_sent = False