“Take action to continue using Google’s OAuth authorization endpoint”
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Hello, and thanks for creating this plugin! I recently received this notice from Google and wanted to know if it’s going to impact my users’ ability to log in. Thanks!
Hello Google Developer,
We’re writing to let you know that we detected the use of an embedded webview in requests to Google’s OAuth 2.0 authorization endpoint in the past 120 days associated with one or more of your OAuth client IDs listed in this email.
Any affected authorization endpoint requests will be blocked with a
disallowed_useragenterror starting July 24, 2023. Affected requests to our authorization endpoint will display a user-facing warning message starting in May until July 24, 2023.What do you need to know?
Embedded webview libraries are highly customizable, which can expose Google’s login and account authorization pages to potential “man-in-the-middle” attacks. Google’s OAuth 2.0 “Use secure browsers” policy helps us protect users from these and other types of attacks.
Examples of affected embedded webview libraries include
android.webkit.WebViewon Android andWKWebViewon iOS or macOS.What do you need to do?
- Review our June 2021 Google Developers blog post, Security changes to Google’s OAuth 2.0 authorization endpoint in embedded webviews, to determine potential next steps.
- Consider how enterprise and educational users might be impacted by embedded webviews in your app(s).
- If you are able to modify the authorization requests of your app, you can choose to test your application for compatibility with our “Use secure browsers” policy after making the necessary changes.
Note: Suppression of the user-facing warning message is not supported.
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