// Retrieve the context value and render the chained handlers context page.
func renderContextPage(w handlers.GhostWriter, r *http.Request) {
err := templates.Render("templates/amber/context.amber",
w, &struct{ Val string }{w.Context()[contextPageKey].(string)})
if err != nil {
panic(err)
}
}
// Prepare the context value for the chained handlers context page.
func setContext(w handlers.GhostWriter, r *http.Request) {
w.Context()[contextPageKey] = time.Now().String()
}