Currently when you open the generated control panel link on iOS and save it to your home screen it will launch a new tab in Mobile Safari. If you do this multiple times you will have multiple tabs with the Eyez-On portal open in Mobile Safari. To prevent this the user has to open up their tab display within Mobile Safari and manually close each instance of the Eyez-On portal.
Simply adding the following code to the head of the web page would fix the issue and cause the Eyez-On web app to act more like a native iOS app and not open as a new tab / page in Mobile Safari, but would work in standalone mode and open / close like a regular iOS app.