Bind data- attributes in input helper

How can I bind data- attributes for the input helper in current versions of Ember?

DEBUG: -------------------------------
DEBUG: Ember             : 2.2.0
DEBUG: Ember Data        : 2.2.1
DEBUG: jQuery            : 1.11.3
DEBUG: Ember Simple Auth : 1.0.0
DEBUG: -------------------------------

This is my helper, but data- attributes are dropped ...

{{input id="price-slider" name="title" type="text" value=model.price data-slider-id="ex1Slider" data-slider-min=model.minPrice data-slider-max=model.maxPrice data-slider-step=model.priceStep data-slider-value=model.price}}