Version conflict

Inertia.version("server")
// middleware installed…

val response = kernel.handle(
    Request("GET", "/", headers = mapOf(
        "X-Inertia" to "true",
        "X-Inertia-Version" to "client",
    )),
)
// status 409, X-Inertia: true, X-Inertia-Version: server

Clients treat 409 as a signal to perform a full page reload.