Get different response thank to params in json files doesn't works

I set my json file for multiple responses like below

``` javascript
//! params: {"limit": 40, "offset": 0}
{
  "name": "value1"
}

//! params: {"limit": 40, "offset": 40}
{
  "name": "value2"
}
```

But canned continue to deliver only the first response, despite I use a different query_list.
Any idea?
