Slick slider c (data-lazy) + fancybox gallery?

Question

JavaScript

There is a slick slider with data-lazy (soft loading of slides), in photo slides from a fensibox, for zoom. Fancybox with attribute, gallery.
If you click on the first photo and click to the end (fancy galleries), the following trouble occurs:

the slides from the date lazy do not load.
how to fix?

Answer 1

solved with:

$('[data-fancybox]').fancybox({
  backFocus : false,
});