bbUI github issue 623

I was making an app this morning, and I noticed that if I use both data-bb-scroll-effect="off" and position: fixed or position: relative styling for an element, approximately half the screen is just white (although any clickable elements still work).
Here's an example of improperly working code:
<div data-bb-type="screen" data-bb-scroll-effect="off" data-bb-effect="fade">
    <img src="images/pic.png" style="position: absolute; width: 100%; height: 100%;" />
    <div data-bb-type="action-bar">
        <div data-bb-type="action" data-bb-style="button" data-bb-img="images/bbm.png" onclick="setStatus();">Update BBM</div>
    </div>
</div>
A temporary workaround is to place the screen images inside
<div style="position: fixed; height: 100%; width: 100%;"></div>
and adding a z-index of 1 or higher to the action-bar.