@cedricmoullet and I just discussed this. @cedricmoullet is going to extend getHref as such:

```
getHref: function(p) {
  var newParams = angular.extend({}, params);
  if (anguar.isDefined(p)) {
    newParams = angular.extend(newParams, p);
  }
  return base + '?' + toKeyValue(newParams);
}
```