URL bar in popups

We are having some great success testing beta enterprise, but one issue we see is that a URL bar appears at the top of each application popup and it seems to be causing a reduction in the vertical real estate of the page thereby cutting off data at the bottom of the window.  Our application popups in native IE11 do not show a URL bar.  Is there a way, either by policy or ASP.net code, to not show a URL in a popup?

Thank you