Any concern render.JSON() can leak internal errors to outside?

Hi, the JSON rendering code seems to expose direct encoding errors to outside
https://github.com/go-chi/render/blob/master/responder.go#L98

```go
if err := enc.Encode(v); err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
```

would it be better to add another function argument to `render.JSON()` or something, rather than exposing library error messages?