Visiting /admin/dashboard while logged out caused a navigation storm:
the dashboard fires ~7 /api/admin/* queries on mount, each returns 401,
each axios interceptor call did `window.location.href = '/admin/login'`.
The path-based guard `currentPath.includes('/admin/login')` reads
`location.pathname` *synchronously* — but `location.href = …` is async,
so all 7 parallel handlers saw the still-old pathname and each fired a
fresh navigation. The browser logged 6+ ERR_ABORTED entries and the user
saw a flicker storm. Same shape would bite any admin page that fans out
queries on mount.
Add a module-level `adminLoginRedirectPending` flag set the moment we
kick off the first redirect; subsequent 401s in the same tick see it
and skip. Single navigation, clean transition to login.
Smoke spec 10-admin-redirect-loop locks the regression in by sampling
the URL across 5 ticks — if any tick lands somewhere other than
/admin/login, the spec fails.
Paul Nothaft
038e84cae7