Add federated option to the Web Auth Logout [SDK-2165]

[lbalmaceda]

Changes

This is a valid parameter exposed by the Authentication API that was missing in this SDK. Support for this feature is up to the Universal Login page and the external identity providers.

References

Internally: SDK-2165

• Read more https://auth0.com/docs/logout/log-users-out-of-idps

Testing

Please describe how this can be tested by reviewers. Be specific about anything not tested and reasons why. Since this library has unit testing, tests should be added for new functionality and existing tests should complete without errors.

• This change adds unit test coverage

• This change adds integration test coverage

• This change has been tested on the latest version of the platform/language or why not

I tested this signing in with my Google account on the device. The Google logout site seems to ignore the return to URL and instead takes you to the account selection screen. It does show that the account has been logged out, though.

Lavender.Partridge.mp4

Checklist

• I have read the Auth0 general contribution guidelines

• I have read the Auth0 Code of Conduct

• All existing and new tests complete without errors