# Bug report

# Detailed description

The `AWS.s3.upload()` (official SDK - https://github.com/aws/aws-sdk-js) returns an object with the `Location` key that points to 4566 instead of 4572 (LocalStack S3 port).

## Expected behavior

The `Location` should point to the file on S3.

Example:

```
Location: http://localhost:4572/path/to/bucket.txt
```

## Actual behavior

The `Location` points to the LocalStack entrypoint.

Example:

```
Location: http://localhost:4566/path/to/bucket.txt
```

# Steps to reproduce

- Upload a file to S3 using the official AWS SDK (https://github.com/aws/aws-sdk-js).
- Check out the `Location` property.

## Client code

```javascript
const AWS = require('aws-sdk');
const s3 = new AWS.S3({
  region: 'us-west-1',
  endpoint: 'http://localhost:4566',
  apiVersion: '2006-03-01',
  s3ForcePathStyle: true,
});

(async () => {
  await s3
    .createBucket({ Bucket: 'my-bucket', ACL: 'private' })
    .promise();

  const { Location } = await s3
    .upload({ Key: 'file.txt', Body: 'test', Bucket: 'my-bucket' })
    .promise();

  console.assert(Location === 'http://localhost:4572/my-bucket/file.txt');
})();
```
handler='lambda_integration.handler',
            runtime=LAMBDA_RUNTIME_NODEJS810
        )
        result = self.lambda_client.invoke(
            FunctionName=TEST_LAMBDA_NAME_JS, Payload=b'{}')
        result_data = result['Payload'].read()
        self.assertEqual(result['StatusCode'], 200)
        self.assertEqual(to_str(result_data).strip(), '{}')
        
        expected = ['.*Node.js Lambda handler executing.']
        self.check_lambda_logs(TEST_LAMBDA_NAME_JS, expected_lines=expected)
        
        testutil.delete_lambda_function(TEST_LAMBDA_NAME_JS)
class TestCustomRuntimes(LambdaTestBase):
    @classmethod
    def setUpClass(cls):
        cls.lambda_client = aws_stack.connect_to_service('lambda')
    def test_nodejs_lambda_running_in_docker(self):
        if not use_docker():
            return
        zip_file = testutil.create_zip_file(
            TEST_LAMBDA_CUSTOM_RUNTIME, get_content=True)
        testutil.create_lambda_function(
            func_name=TEST_LAMBDA_NAME_CUSTOM_RUNTIME,
            zip_file=zip_file,
            handler='function.handler',
            runtime=LAMBDA_RUNTIME_PROVIDED
        )
        result = self.lambda_client.invoke(
            FunctionName=TEST_LAMBDA_NAME_CUSTOM_RUNTIME,