Mas se você tiver cabeçalhos personalizados desejando que um cliente em um navegador esteja apto a ver, você precisa adicioná-los às suas configurações CORS ([CORS (Cross-Origin Resource Sharing)](cors.md){.internal-link target=_blank}) usando o parâmetro `expose_headers` documentado em <a href="https://www.starlette.dev/middleware/#corsmiddleware" class="external-link" target="_blank">Documentos CORS da Starlette</a>.

	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		if origin := w.Header().Get("Access-Control-Allow-Origin"); origin == "null" {
			// This is a workaround change to ensure that "Origin: null"
			// incoming request to a response back as "*" instead of "null"
			w.Header().Set("Access-Control-Allow-Origin", "*")
		}
		if globalDNSConfig == nil || !globalBucketFederation ||

import java.util.Objects
import javax.net.SocketFactory
import javax.net.ssl.HostnameVerifier
import javax.net.ssl.SSLSocketFactory
import okhttp3.internal.toImmutableList

/**
 * A specification for a connection to an origin server. For simple connections, this is the
 * server's hostname and port. If an explicit proxy is requested (or [no proxy][Proxy.NO_PROXY] is

{* ../../docs_src/additional_status_codes/tutorial001_an_py310.py hl[4,25] *}

/// warning | Achtung

Wenn Sie eine `Response` direkt zurückgeben, wie im obigen Beispiel, wird sie direkt zurückgegeben.

Sie wird nicht mit einem Modell usw. serialisiert.

Stellen Sie sicher, dass sie die gewünschten Daten enthält und dass die Werte gültiges JSON sind (wenn Sie `JSONResponse` verwenden).

  }

  override fun pushPromise(
    streamId: Int,
    associatedStreamId: Int,
    headerBlock: List<Header>,
  ) {
    fail("")
  }

  override fun alternateService(
    streamId: Int,
    origin: String,
    protocol: ByteString,
    host: String,
    port: Int,
    maxAge: Long,
  ) {
    fail("")
  }

cluster_deadline                (duration)  set the deadline for cluster readiness check (default: '10s')
cors_allow_origin               (csv)       set comma separated list of origins allowed for CORS requests (default: '*')
remote_transport_deadline       (duration)  set the deadline for API requests on remote transports while proxying between federated instances e.g. "2h" (default: '2h')

このミドルウェアは2種類のHTTPリクエストに応答します...

### CORSプリフライトリクエスト

これらは、 `Origin` ヘッダーと `Access-Control-Request-Method` ヘッダーを持つ `OPTIONS` リクエストです。

この場合、ミドルウェアはリクエストを横取りし、適切なCORSヘッダーと共に情報提供のために `200` または `400` のレスポンスを返します。

### シンプルなリクエスト

`Origin` ヘッダーのあるリクエスト。この場合、ミドルウェアは通常どおりリクエストに何もしないですが、レスポンスに適切なCORSヘッダーを加えます。

## より詳しい情報

     * <origin><![CDATA[
     * <distributionManagement>
     * <repository>
     * <id>some-repo</id>
     * <url>scp://host/path</url>
     * </repository>
     * <snapshotRepository>
     * <id>some-snap-repo</id>
     * <url>scp://host/snapshot-path</url>
     * </snapshotRepository>
     * </distributionManagement>
     * ]]></origin>
     * <usage><![CDATA[

s" class="external-link" target="_blank">usando el prefijo `X-`</a>.

Pero si tienes headers personalizados que quieres que un cliente en un navegador pueda ver, necesitas agregarlos a tus configuraciones de CORS (leer más en [CORS (Cross-Origin Resource Sharing)](../tutorial/cors.md){.internal-link target=_blank}), usando el parámetro `expose_headers` documentado en <a href="https://www.starlette.dev/middleware/#corsmiddleware" class="external-link" target="_blank">la documentación CORS...

import com.google.common.collect.UnmodifiableIterator;
import java.util.AbstractSet;
import java.util.Map;
import org.jspecify.annotations.Nullable;

/**
 * A class to represent the set of edges connecting an (implicit) origin node to a target node.
 *
 * <p>The {@link #nodeToOutEdge} map means this class only works on networks without parallel edges.
 * See {@link MultiEdgesConnecting} for a class that works with parallel edges.
 *