Description
Is your feature request related to a problem? Please describe.
[SkipStatusCodePages] is meant to be used in actions that are API calls, so that the StatusCodePagesMiddleware does not interfere with the response status code and body.
API actions are almost always decorated with [Authorize]. When user is not authorized, AuthorizeFilter short circuits and returns 401. Due to the short circuit, IResourceFilter, which SkipStatusCodePagesAttribute inherits, does not run, thus StatusCodePagesMiddleware runs and modifies the status code and body. The API caller does not receive 401 with empty body.
Describe the solution you'd like
Ideally, the StatusCodePagesMiddleware does not run when [SkipStatusCodePages], thus the API caller receives 401 with empty body.
This can be achieved by having SkipStatusCodePagesAttribute inherit from IAlwaysRunResultFilter instead.
Describe alternatives you've considered
Modifying the middleware pipeline with custom middleware. But this dissociates the action that needs SkipStatusCodePages from the code that does the work