DirContextHolder holder = contextLocal.get();
        if (holder != null) {
            holder.inc();
            return holder;
        }
        final Hashtable<String, String> env = envSupplier.get();
        try {
            holder = new DirContextHolder(new InitialDirContext(env));
            contextLocal.set(holder);
            return holder;
        } catch (final NamingException e) {

        for (final RequestHeader requestHeader : requestHeaderList) {
            rhList.add(requestHeader.getCrawlerRequestHeader());
        }
        paramMap.put(HcHttpClient.REQUERT_HEADERS_PROPERTY,
                rhList.toArray(new org.codelibs.fess.crawler.client.http.RequestHeader[rhList.size()]));

        final String proxyHost = (String) paramMap.get(Param.Client.PROXY_HOST);

            count++;
            headerName = paramMap.get(CRAWLER_WEB_HEADER_PREFIX + count + ".name");
        }
        if (!rhList.isEmpty()) {
            factoryParamMap.put(HcHttpClient.REQUERT_HEADERS_PROPERTY,
                    rhList.toArray(new org.codelibs.fess.crawler.client.http.RequestHeader[rhList.size()]));
        }

        // proxy credentials

"statusCode","requestHeaders","requestHeadersNames","strAbort","getResponseHeader","getAllResponseHeaders","setRequestHeader","overrideMimeType","mimeType","status","abort","statusText","finalText","crossDomain","host","hasContent","ifModified","headers","beforeSend","success","send","nativeStatusText","responses","isSuccess","response","modified","ct","finalDataType","firstDataType","ajaxHandleResponses","conv2","current","conv","dataFilter","throws","ajaxConvert","getJSON","getScript","text sc...

public abstract class CorsHandler {

    protected static final String ACCESS_CONTROL_ALLOW_ORIGIN = "Access-Control-Allow-Origin";

    protected static final String ACCESS_CONTROL_ALLOW_HEADERS = "Access-Control-Allow-Headers";

    protected static final String ACCESS_CONTROL_ALLOW_METHODS = "Access-Control-Allow-Methods";

    protected static final String ACCESS_CONTROL_ALLOW_PRIVATE_NETWORK = "Access-Control-Allow-Private-Network";

    }

    // ===================================================================================
    //                                                                             Helpers
    //                                                                           =========
    protected boolean isLoginRequired() {
        if (fessConfig.isLoginRequired() && !fessLoginAssist.getSavedUserBean().isPresent()) {

    /** The key of the configuration. e.g.  */
    String API_JSON_RESPONSE_HEADERS = "api.json.response.headers";

    /** The key of the configuration. e.g. false */
    String API_JSON_RESPONSE_EXCEPTION_INCLUDED = "api.json.response.exception.included";

    /** The key of the configuration. e.g.  */
    String API_GSA_RESPONSE_HEADERS = "api.gsa.response.headers";

    /** The key of the configuration. e.g. false */

        this.maxEsStatusRetry = maxEsStatusRetry;
    }

    @Override
    public Client filterWithHeader(final Map<String, String> headers) {
        return client.filterWithHeader(headers);
    }

    @Override
    public <Request extends ActionRequest, Response extends ActionResponse> ActionFuture<Response> execute(

"statusCode","requestHeaders","requestHeadersNames","strAbort","getResponseHeader","getAllResponseHeaders","setRequestHeader","overrideMimeType","mimeType","status","abort","statusText","finalText","crossDomain","host","hasContent","ifModified","headers","beforeSend","success","send","nativeStatusText","responses","isSuccess","response","modified","ct","finalDataType","firstDataType","ajaxHandleResponses","conv2","current","conv","dataFilter","throws","ajaxConvert","getJSON","getScript","text sc...

api.search.accept.referers=
api.search.scroll=false
api.json.response.headers=
api.json.response.exception.included=false
api.gsa.response.headers=
api.gsa.response.exception.included=false
api.dashboard.response.headers=
api.cors.allow.origin=*
api.cors.allow.methods=GET, POST, OPTIONS, DELETE, PUT
api.cors.max.age=3600
api.cors.allow.headers=Origin, Content-Type, Accept, Authorization, X-Requested-With