# CORS (Cross-Origin Resource Sharing)

<a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS" class="external-link" target="_blank">CORS ou "Cross-Origin Resource Sharing"</a> refere-se às situações em que um frontend rodando em um navegador possui um código JavaScript que se comunica com um backend, e o backend está em uma "origem" diferente do frontend.

## Origem

    //                                                                           =========
    @Resource
    private ElevateWordService elevateWordService;
    @Resource
    private ElevateWordPager elevateWordPager;
    /** Helper for managing search suggestions and elevate words. */
    @Resource
    protected SuggestHelper suggestHelper;
    @Resource
    private LabelTypeService labelTypeService;

class="external-link" target="_blank">usando o prefixo 'X-'</a>.

Porém, se voce tiver cabeçalhos personalizados que deseja que um cliente no navegador possa ver, você precisa adicioná-los às suas configurações de CORS (saiba mais em [CORS (Cross-Origin Resource Sharing)](../tutorial/cors.md){.internal-link target=_blank}), usando o parâmetro `expose_headers` descrito na <a href="https://www.starlette.io/middleware/#corsmiddleware" class="external-link" target="_blank">documentação de CORS do Starlette</a>....

Konkretere Beispiele hierfür mit Containern gebe ich Ihnen in einem späteren Kapitel: [FastAPI in Containern – Docker](docker.md){.internal-link target=_blank}.

///

## Ressourcennutzung

Ihr(e) Server ist (sind) eine **Ressource**, welche Sie mit Ihren Programmen, der Rechenzeit auf den CPUs und dem verfügbaren RAM-Speicher verbrauchen oder **nutzen** können.

import org.codelibs.fess.opensearch.config.exentity.WebConfig;
import org.codelibs.fess.util.ComponentUtil;
import org.lastaflute.web.Execute;
import org.lastaflute.web.response.JsonResponse;

import jakarta.annotation.Resource;

/**
 * API action for admin web configuration management.
 *
 */
public class ApiAdminWebconfigAction extends FessApiAdminAction {

    /** The logger for this class. */

            CloseableUtil.close(in);
        }
    }

    /**
     * Loads a resource from the context class loader into the {@link Properties} (wraps exception handling).
     *
     * @param props
     *            Property set. Must not be {@literal null}.
     * @param path
     *            Resource path. Must not be {@literal null} or empty.
     */

import org.codelibs.fess.crawler.exception.ChildUrlsException;
import org.codelibs.fess.crawler.helper.SitemapsHelper;
import org.codelibs.fess.crawler.processor.ResponseProcessor;

import jakarta.annotation.Resource;

/**
 * A response processor implementation that handles sitemaps.
 * It parses the response body as a SitemapSet, extracts URLs from the sitemaps,
 * and adds them as child URLs to be crawled.
 *
 * <p>

import org.codelibs.fess.crawler.extractor.Extractor;
import org.codelibs.fess.crawler.extractor.ExtractorFactory;
import org.codelibs.fess.crawler.helper.MimeTypeHelper;

import jakarta.annotation.Resource;

/**
 * An abstract base class for implementing Extractor interfaces.
 * Provides common functionality such as access to CrawlerContainer components
 * and registration with the ExtractorFactory.
 *
 * <p>

import org.codelibs.fess.crawler.util.IgnoreCloseInputStream;

import jakarta.annotation.Resource;

/**
 * Extracts text content from ZIP archives.
 */
public class ZipExtractor extends AbstractExtractor {
    private static final Logger logger = LogManager.getLogger(ZipExtractor.class);

    /**
     * The archive stream factory.
     */
    @Resource
    protected ArchiveStreamFactory archiveStreamFactory;

    /**

# Ressourcen