public boolean wasProxyAttempt() {
        // If an attempt was made to send outbound request headers on this session, then assume it was an
        // attempt to proxy.
        return findState(PassportState.OUT_REQ_HEADERS_SENDING) != null;
    }
NOTE: This is NOT nanos since epoch. It's just since an arbitrary point in time. So only use relatively.
zuul-core/src/main/java/com/netflix/zuul/passport/CurrentPassport.java