Help with allowing access to WebView2

Hey everyone, 

I'm pretty new to UTM and Sophos in general, but the company I work for has some units deployed that apparently need access to Microsoft WebView2. I'm hoping that I can just write a new rule to whitelist a DNS/DNS Group, but I haven't had any luck in finding out what that DNS would be. 

Is this something that anyone has any experience with? Any advice or tips would be much appreciated. 

Thanks!