if !ok {
		responsewriters.ErrorNegotiated(
			apierrors.NewInternalError(fmt.Errorf("no RequestInfo found in the context")),
			Codecs, schema.GroupVersion{}, w, req,
		)
		return
	}
	if !requestInfo.IsResourceRequest {
		pathParts := splitPath(requestInfo.Path)
		// only match /apis/<group>/<version>
		// only registered under /apis
		if len(pathParts) == 3 {
			r.versionDiscoveryHandler.ServeHTTP(w, req)
			return
		}