return OptionalThing.empty();
    }

    @Override
    protected void setupHtmlData(final ActionRuntime runtime) {
        super.setupHtmlData(runtime);
        systemHelper.setupSearchHtmlData(this, runtime);

        runtime.registerData("osddLink", osddHelper.hasOpenSearchFile());
        runtime.registerData("clipboardCopyIcon", fessConfig.isClipboardCopyIconEnabled());

        if (eoled) {
            final String eolLink = fessConfig.getOnlineHelpEol();
            runtime.registerData("eolLink", getHelpUrl(eolLink));
        }
    }

    public void setupSearchHtmlData(final TypicalAction action, final ActionRuntime runtime) {
        runtime.registerData("developmentMode", ComponentUtil.getSearchEngineClient().isEmbedded());
        final FessConfig fessConfig = ComponentUtil.getFessConfig();