Navigation header back button

The navigation header shows a back button on the Android build but the web page preview does not show one.

I like the idea of using the header to just put the app name in for product recognition but the app is specifically designed to require an established button on each page to navigate the away from that page. Is there a way to either have the back button not appear in the navigation header or creating a container that stays at the top of each page?

Thank you for your assistance.