Responsive player shows browser tabs and URL bar

I published to HTML5 only. Player set to resize browser to fill screen, scale Player to resize to browser window.  Player has no skin style.  Users are launching the demo by typing in the URL to the story.html on their mobile screen browser.  When demo launches you can see the browser tabs and location field.  How do I make the demo go full screen (no browser location bar at least)? 

The description of the new SL responsive browser (below) suggests browser chrome is eliminated. What am I not understanding?

The all-new responsive player automatically displays when you view Storyline 360 and Studio 360 HTML5 courses on tablets and smartphones. It fluidly responds to the screen size and orientation of any mobile device for the best viewing experience, hiding sidebar menus, eliminating browser chrome, and delivering mobile-friendly playback controls. No extra work required. Just publish your course and let the player do all the work for you.

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