Laravel popup image sharing

I have a problem with sharing images to social media as (Facebook, Twitter,...) as the image is an popup image which means it doesn't show in a separate link so i cant share the full url , and the other problem that the source of the image tag is pointing to my storage here is the image code:

<div class="col-xs-12 col-sm-6 col-md-4 col-lg-3">
      <a class="fancybox-buttons img-holder small-img" rel="gallery" title="" data-fancybox-group="button" href="/storage/galleries/">
         <img src="/storage/galleries/" alt="img">
      </a>
</div>

here is the Js code for the popup

$('.fancybox-buttons').fancybox({
        openEffect  : 'none',
        closeEffect : 'none',

        prevEffect : 'none',
        nextEffect : 'none',

        closeBtn  : false,

        helpers : {
            title : {
                type : 'inside'
            },
            buttons : {}
        },

        afterLoad : function() {
            this.title = '<a href="https://www.facebook.com/sharer/sharer.php?u=" class="btn btn-fb btn-small"><i class="fa fa-facebook right-fa"></i> Share</a>' +
                    '<a href="https://twitter.com/intent/tweet?url=" class="btn btn-tw btn-small"><i class="fa fa-twitter right-fa"></i> Share</a>' +
                    '<a href="https://plus.google.com/share?url=" class="btn btn-inst btn-small"><i class="fa fa-instagram right-fa"></i> Share</a>';

        }
    });

via Chebli Mohamed