### Is there an existing issue for this?
- [X] I have searched the existing issues
### Describe the bug
hi, so im having a problem where my engine that using send message command from this library …
### Version
3.3.0
### Reproduction link
[http://www.baidu.com](http://www.baidu.com)
### Environment info
```
npm version 6.5.0
node version 10.13.0
vue-cli versioin 3.0.4
```…