ed to fail close.</li><li><code>UNAUTHENTICATED</code>: The request is rejected by Mixer authentication.</li><li><code>PERMISSION_DENIED</code>: The request is rejected by Mixer authorization.</li><li><code>RESOURCE_EXHAUSTED</code>: The request is rejected by Mixer quota.</li><li><code>INTERNAL</code>: The request is rejected due to Mixer internal error.</li></ul><h2 id=route-rules-don-t-seem-to-affect-traffic-flow>Route rules don&rsquo;t seem to affect traffic flow</h2><p>With the current Envoy sidecar im