invalidate() method timeout

Describe the problem

If invalidate() is called and the server generates an error, it appears the client is directed to an error page with the appropriate details. ✅

But if invalidate() is called and there is simply no response, then what? Right now it appears happy to wait forever (where "forever" is at least the 5 minutes I waited). This could lead to inconsistent state if not handled.

Should we be expected to add our own timeout mechanism or could a default timeout option be set or invalidate() allow a timeout parameter that could generate an error on the client?

Describe the proposed solution

Either a global timeout or a per-invalidate timeout, that will generate a timeout error on the client (or a combination of timeout and retry mechanism).

Alternatives considered

No response

Importance

would make my life easier

Additional Information

No response

Start at the client-side invalidate() entry point and trace the no-response path alongside the existing server-error path. Decide whether the timeout is global or per call, add coverage for a request that never responds, and verify that the client reports a timeout instead of waiting indefinitely.