@NotNull
    @JsonProperty
    @JsonPropertyDescription("The URL to forward onto. This is pass-through mode if instant is set.")
    public String getForwardUrl() {
        return forwardUrl;
    }
True if received streams should be forwarded to another stroom(-proxy) instance.
stroom-proxy/stroom-proxy-app/src/main/java/stroom/proxy/app/handler/ForwardHttpPostConfig.java