External redirects

Inertia.location("https://example.com")

Client	Status	Headers
Inertia (X-Inertia + current request set)	409	X-Inertia-Location: <url>
Ordinary browser / no Inertia request	302	Location: <url>

Requires a current request on the manager for the Inertia branch (middleware). Without a current request, behavior is the ordinary 302.

After middleware, decorate may add X-Inertia-Version when the response already carries X-Inertia-Location.