It appears to be related to sign-in flow[1], but may not affect signing in via Google.com or other Google-hosted services directly. It's the API for "Sign in wi

It appears to be related to sign-in flow[1], but may not affect signing in via Google.com or other Google-hosted services directly. It's the API for "Sign in with Google", far as I can tell here. [1]: https://developers.google.com/identity/gsi/web https://developers.google.com/identity/gsi/web