Please answer these questions before submitting your issue. Thanks!

- [x] I have read the [_examples](https://github.com/kataras/iris/tree/master/_examples), [Contributing File](https://github.com/kataras/iris/blob/master/.github/CONTRIBUTING.md).


### What version of Go are you using, minimum 1.8 (`go version`)?


### What operating system and processor architecture are you using (`go env`)?


### What version of Iris are you using?


### What did you do?

If possible, provide a recipe for reproducing the error.
A complete runnable program is good.


### What did you expect to see?


### What did you see instead?