Node fix to check for params

Guard condition for cfg.params when a request is made in the Node environment.
- [x] Node
- [x] Chrome
- [x] Firefox
- [x] Safari
- [ ] IE11
- [ ] IE10
- [ ] IE9
- [ ] IE8
- [ ] IE7
- [ ] IE6
@brianjmiller over to you for IE wrangling :+1: