I get an error in the contao system log unknown insert tag {{ua::class|attr}} on page site. Can i remove the body class from all layouts without having issues. How are the browser specific classes are handled without this insettag in body class?

[bzaiser]

Bug description

Steps to reproduce

Expected behavior

Screenshots

Environment

[seibtph]

Closed because duplicate issue. I have answered here: https://github.com/contao-themes-net/nature-theme-bundle/issues/85