MacOS 10.14.6 Mojave.
Node v10.15.3
LocalStack - docker image 0.10.4

When invoking a Lambda from Node.js code.


    const lambda = new Aws.Lambda(creds);
    
    const payload = {};
    
    const clientContext = {
        invokedFunctionArn: this._workerArn
    };
    
    const params = {
        FunctionName: this._workerArn,
        InvocationType: "RequestResponse", // "DryRun",
        LogType: 'Tail', // "None", "Tail"
        ClientContext: JSON.stringify(clientContext),
        Payload: JSON.stringify(payload)
    };
    
    console.log(`DEBUG: Executing lambda ${JSON.stringify(params)}`);
    
    lambda.invoke(params, function (err, data) {
        console.log(`DEBUG: Printing lambda return arguments`);
        console.log(JSON.stringify(arguments));
        console.log(data.LogResult);
    });```
DEBUG: Printing lambda return arguments
{"0":null,"1":{"StatusCode":200,"Payload":"null"}}
undefined
```

Expecting to see the Lambda execution log in `data.LogResult`, but no such object returned,
yet Localstack Cloudwatch logs recorded the execution logs correctly.


```
EVENTS	75	1570381308926.664	+51733/05/27/[$LATEST]629146bb	START RequestId: dbd86068-78c8-1a62-29ca-9c0a4a8580c3 Version: $LATEST	1570381306039
EVENTS	76	1570381308926.664	+51733/05/27/[$LATEST]629146bb	2019-10-06T17:01:47.924Z	dbd86068-78c8-1a62-29ca-9c0a4a8580c3	INFO	DEBUG: LOCALSTACK_HOSTNAME=172.17.0.1	1570381306520
...
EVENTS	79	1570381308926.664	+51733/05/27/[$LATEST]629146bb	END RequestId: dbd86068-78c8-1a62-29ca-9c0a4a8580c3	1570381307961
EVENTS	80	1570381308926.664	+51733/05/27/[$LATEST]629146bb	REPORT RequestId: dbd86068-78c8-1a62-29ca-9c0a4a8580c3	Duration: 16.05 ms	Billed Duration: 100 ms	Memory Size: 1536 MB	Max Memory Used: 57 MB		1570381308442
```

What I'm missing? Why it doesn't return logs on invoke?

Thanks



┆Issue is synchronized with this [Jira Bug](https://localstack.atlassian.net/browse/LOC-125) by [Unito](https://www.unito.io/learn-more)

self.assertEqual(policy['Statement'][0]['Principal']['Service'], principal)
        self.assertEqual(policy['Statement'][0]['Condition']['ArnLike']['AWS:SourceArn'],
                         aws_stack.s3_bucket_arn('test-bucket'))
        
        policies = iam_client.list_policies(Scope='Local', MaxItems=500)['Policies']
        matching = [p for p in policies if p['PolicyName'] == 'lambda_policy_%s' % function_name]
        self.assertEqual(len(matching), 1)
        self.assertIn(':policy/', matching[0]['Arn'])
        
        resp = lambda_client.remove_permission(FunctionName=function_name,
                                               StatementId=sid, Qualifier='qual1', RevisionId='r1')
        self.assertEqual(resp['ResponseMetadata']['HTTPStatusCode'], 200)
        lambda_client.delete_function(FunctionName=function_name)
    def test_add_lambda_multiple_permission(self):
        function_name = 'lambda_func-{}'.format(short_uid())
        testutil.create_lambda_function(
            handler_file=TEST_LAMBDA_ECHO_FILE,
            func_name=function_name,
            runtime=LAMBDA_RUNTIME_PYTHON36
        )
        iam_client = aws_stack.connect_to_service('iam')
        lambda_client = aws_stack.connect_to_service('lambda')
        
        action = 'lambda:InvokeFunction'
        principal = 's3.amazonaws.com'
        statement_ids = ['s4', 's5']
        for sid in statement_ids:
            resp = lambda_client.add_permission(FunctionName=function_name, Action=action,
                                                StatementId=sid, Principal=principal,
                                                SourceArn=aws_stack.s3_bucket_arn('test-bucket'))