Grid not rendering until browser resize!

[m3xx]

I have an issue. The grid does not render properly until I resize the browser.

screens

http://imgur.com/yGYBiGl

http://imgur.com/MGMklqb

my html

<div class="gallery">
                <a href="img/gallery/1.jpg"><img src="img/gallery/1.jpg" alt="Alt"></a>
                <a href="img/gallery/2.jpg"><img src="img/gallery/2.jpg" alt="Alt"></a>
                <a href="img/gallery/3.jpg"><img src="img/gallery/3.jpg" alt="Alt"></a>
                <a href="img/gallery/4.jpg"><img src="img/gallery/4.jpg" alt="Alt"></a>
                <a href="img/gallery/5.jpg"><img src="img/gallery/5.jpg" alt="Alt"></a>
                <a href="img/gallery/6.jpg"><img src="img/gallery/6.jpg" alt="Alt"></a>
                <a href="img/gallery/7.jpg"><img src="img/gallery/7.jpg" alt="Alt"></a>
                <a href="img/gallery/8.jpg"><img src="img/gallery/8.jpg" alt="Alt"></a>
                <a href="img/gallery/9.jpg"><img src="img/gallery/9.jpg" alt="Alt"></a>
                <a href="img/gallery/10.jpg"><img src="img/gallery/10.jpg" alt="Alt"></a>
            </div>`

my sass

.gallery
    position: relative
    width: 100%
    height: 100%
    a
        overflow: hidden
        display: block
        width: 320px
        img
            display: block
            max-width: 100%`

my js

$(function() {
    var wall = new freewall(".gallery");
    wall.reset({
        selector: 'a',
        animate: true,
        cellW: 120,
        cellH: 'auto',
        gutterY: 25,
        fixSize: 0,
        onResize: function() {
            wall.refresh();
        }
    });

    wall.container.find('a img').load(function() {
        wall.fitWidth();
    });
});

[PhantomRay]

You can do wall.refresh() after all images being loaded. Sample code below. You may want to change it a little bit.

var images = $(html).find('img');
var length = images.length;
images.load(checkImageStatus);
images.error(checkImageStatus);

wall.appendBlock(html);

function checkImageStatus() {
    --length;
    if (!length) {
        setTimeout(function () {
            wall.refresh();
        }, 505);
    }
}

[kombai]

@dragonfish-au Thank you.