We are having an issue with the latest image of localstack (bc991b0bc3ce).
While creating an SQS and setting parameters we experience the following error:

```
localstack_1        | 2019-09-09T10:46:22:ERROR:localstack.services.generic_proxy: Error forwarding request: 'QueueUrl' Traceback (most recent call last):
localstack_1        |   File "/opt/code/localstack/localstack/services/generic_proxy.py", line 234, in forward
localstack_1        |     path=path, data=data, headers=forward_headers)
localstack_1        |   File "/opt/code/localstack/localstack/services/sqs/sqs_listener.py", line 53, in forward_request
localstack_1        |     self._set_queue_attributes(req_data)
localstack_1        |   File "/opt/code/localstack/localstack/services/sqs/sqs_listener.py", line 245, in _set_queue_attributes
localstack_1        |     queue_url = req_data['QueueUrl'][0]
localstack_1        | KeyError: 'QueueUrl'
```

From the logs I guess the `QueueUrl` is expected and it's not there. We don't see this behaviour in the last version (0.10.2).

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print('ERROR: %s' % error_msg)
            self.send_response(502)  
            self.end_headers()
            
            self.close_connection = 1
        finally:
            try:
                self.wfile.flush()
            except Exception as e:
                LOG.warning('Unable to flush write file: %s' % e)
    def _send_cors_headers(self, response=None):
        headers = response and response.headers or {}
        if 'Access-Control-Allow-Origin' not in headers:
            self.send_header('Access-Control-Allow-Origin', '*')
        if 'Access-Control-Allow-Methods' not in headers:
            self.send_header('Access-Control-Allow-Methods', ','.join(CORS_ALLOWED_METHODS))
        if 'Access-Control-Allow-Headers' not in headers:
            requested_headers = self.headers.get('Access-Control-Request-Headers', '')
            requested_headers = re.split(r'[,\s]+', requested_headers) + CORS_ALLOWED_HEADERS
            self.send_header('Access-Control-Allow-Headers', ','.join(requested_headers))
        if 'Access-Control-Expose-Headers' not in headers:
            self.send_header('Access-Control-Expose-Headers', ','.join(CORS_EXPOSE_HEADERS))
    def _listeners(self):
        return self.DEFAULT_LISTENERS + [self.proxy.update_listener]
    def log_message(self, format, *args):
        return
class GenericProxy(FuncThread):