Cannot get v2 Tokens

I have the plugin installed in a capacitor app.  I have my authorityUrl set "https://login.microsoftonline.com/{tenantId}" 
The login is successful, but always returns a v1 token. The issuer is sts.windows.net. How do I enforce a v2 token?

I haven't found anything in the readme about token versions. Looks like the source has the v2 URL, but somehow switches to v1.
