In order to allow web clips to show through restricted show apps, you have to allow the following as an application :
This will whitelist all your webclips.
the answer is ok
it doesn't auto complete but it works.
Yes indeed, it will not be listed as an app because com.apple.webapp is not an app ID per se but if you type it it will take into considerations your webclips :
This is the way we use it and it works perfectly fine for us
The only set back is that you won't be allow to display only some webapps, it's all webapps or nothing.
It works, thank you very much.