On 6.0+ need the following in trusted sites and/or IE Enhanced Sec OFF:
About:blank
6.2.0.14 and beyond require:
Microsoft .Net 4.8
Microsoft WebView2 - https://developer.microsoft.com/en-us/microsoft-edge/webview2/?form=MA13LH
User folder permissions to their personal Microsoft WebView2 folder C:\WebView2UserData\
