public void forEachNormalised(BiConsumer<? super String, ? super String> entryConsumer) {
        for (int i = 0; i < size(); i++) {
            entryConsumer.accept(name(i), value(i));
        }
    }
Iterates over the header entries with the given consumer.  The first argument will be the normalised header
name as returned by {@link HeaderName#getNormalised()}.  The second argument will be the value.  Do not modify
the headers during iteration.
zuul-core/src/main/java/com/netflix/zuul/message/Headers.java