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)

return error_response(str(e), 400)
    response = lambda_obj.get_function_event_invoke_config()
    return jsonify(response)
@app.route('/2019-09-25/functions/<function>/event-invoke-config', methods=['DELETE'])
def delete_function_event_invoke_config(function):
    try:
        function_arn = func_arn(function)
        lambda_obj = ARN_TO_LAMBDA[function_arn]
    except Exception as e:
        return error_response(str(e), 400)
    lambda_obj.clear_function_event_invoke_config()
    return Response('', status=204)
@app.route('/2020-06-30/functions/<function>/code-signing-config', methods=['GET'])
def get_function_code_signing_config(function):
    function_arn = func_arn(function)
    if function_arn not in ARN_TO_LAMBDA:
        msg = 'Function not found: %s' % (function_arn)
        return error_response(msg, 404, error_type='ResourceNotFoundException')
    lambda_obj = ARN_TO_LAMBDA[function_arn]
    if not lambda_obj.code_signing_config_arn:
        arn = None
        function = None
    else:
        arn = lambda_obj.code_signing_config_arn
    result = {
        'CodeSigningConfigArn': arn,
        'FunctionName': function
    }
    return Response(json.dumps(result), status=200)
@app.route('/2020-06-30/functions/<function>/code-signing-config', methods=['PUT'])