SITE_HOST takes a comma-separated list now, the first name canonical. It serves
the site; every other name in the list redirects there permanently, path and
query intact. An apex domain and its www are two names for one thing, and
answering on both without picking one splits search rankings and cookies
between them.
The redirect is a host-bound catch-all rather than middleware. Middleware that
only some routes carry is the same half-measure this file already made once,
and a catch-all registered without a host would swallow every path in the
application — which is what the third test is there to stop.
The test harness needed fixing too, and the fix is the finding. Router::dispatch
on a standalone router does not rebind the container's request, so a route
reading one — through the helper OR through an injected parameter, both of which
resolve from the container — gets the test's request rather than the one being
answered. The redirect silently lost its query string in the test while working
in production. dispatchOn() binds it where the framework would.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>