Document cookie authentication API endpoint breaking change for .NET 10 #47904
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…ints Co-authored-by: gewarren <[email protected]>
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This PR documents the breaking change introduced in .NET 10 Preview 7 where cookie authentication no longer redirects to login or access denied URIs for known API endpoints, as announced in aspnet/Announcements#525.
Summary
The breaking change affects how ASP.NET Core handles authentication failures for API endpoints. Previously, unauthenticated and unauthorized requests would redirect to a login or access denied URI. Now, known API endpoints return 401 and 403 status codes directly, which is more appropriate for API scenarios.
Changes Made
Added comprehensive breaking change documentation at
docs/core/compatibility/aspnet-core/10/cookie-authentication-api-endpoints.md:Updated the table of contents in
docs/core/compatibility/toc.ymlto include the new breaking change entry in the appropriate alphabetical position.Key Details
Microsoft.AspNetCore.Http.Metadata.IApiEndpointMetadataMicrosoft.AspNetCore.Authentication.Cookies.CookieAuthenticationEvents.RedirectToLoginMicrosoft.AspNetCore.Authentication.Cookies.CookieAuthenticationEvents.RedirectToAccessDeniedThe documentation follows the established format and style guidelines, provides clear migration guidance, and includes complete code examples for developers who need to maintain the previous redirect behavior.
Fixes #47903.
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