Google Will Block Their OAuth 2.0 Authorization Endpoint In Embedded Webviews From 30 September 2021
https://developers.googleblog.comGoogle recently introduced a new secure browser policy prohibiting Google OAuth requests in embedded browser libraries commonly referred to as embedded webviews. All embedded webviews will be blocked starting on September 30, 2021.
Developers must register an appropriate OAuth client for each platform (Desktop, Android, iOS, etc.) on which your app will run, in compliance with Google’s OAuth 2.0 Policies.
A warning message may be displayed in non-compliant authorization requests after August 30, 2021. The warning message will include the user support email defined in your project’s OAuth consent screen in Google API Console and direct the user to visit our Sign in with a supported browser support article.
