これを実現するには、バックエンドに「許可されたオリジン」のリストがなければなりません。

この場合、フロントエンドを正しく機能させるには、そのリストに `http://localhost:8080` を含める必要があります。

## ワイルドカード

リストを `"*"` (ワイルドカード) と宣言して、すべてを許可することもできます。

ただし、Bearer Tokenで使用されるような認証ヘッダーやCookieなどのクレデンシャル情報に関するものを除いて、特定の種類の通信のみが許可されます。

したがって、すべてを正しく機能させるために、許可されたオリジンの明示的な指定をお勧めします。

## `CORSMiddleware` の使用

**FastAPI** アプリケーションでは `CORSMiddleware` を使用して、CORSに関する設定ができます。

        v.add(new DERTaggedObject(true, 2, new DERBitString(new byte[] { apOptions }))); // first byte read by impl
        return new DERSequence(v);
    }

    @Test
    @DisplayName("byte[] ctor: empty token throws PACDecodingException with clear message")
    void byteArrayConstructor_emptyToken_throws() {
        // Arrange
        byte[] empty = new byte[0];

        // Act + Assert

errors.failed_to_download_mapping_file = Failed to download a mapping file.
errors.failed_to_upload_mapping_file = Failed to upload a mapping file.
errors.invalid_kuromoji_token={0} is invalid as a token.
errors.invalid_kuromoji_segmentation=The number of segmentation for {0} and {1} is different.
errors.invalid_str_is_included = {1} is invalid for {0}.
errors.blank_password = Password is required.

errors.failed_to_download_mapping_file = Failed to download a mapping file.
errors.failed_to_upload_mapping_file = Failed to upload a mapping file.
errors.invalid_kuromoji_token={0} is invalid as a token.
errors.invalid_kuromoji_segmentation=The number of segmentation for {0} and {1} is different.
errors.invalid_str_is_included = {1} is invalid for {0}.
errors.blank_password = Password is required.

			start.Name.Local))
	}
	for {
		// Read tokens from the XML document in a stream.
		t, err := d.Token()
		if err != nil {
			if err == io.EOF {
				break
			}
			return err
		}

		if se, ok := t.(xml.StartElement); ok {
			switch se.Name.Local {
			case "Rule":
				var r Rule

errors.failed_to_download_mapping_file = No se pudo descargar el archivo de mapeo.
errors.failed_to_upload_mapping_file = No se pudo cargar el archivo de mapeo.
errors.invalid_kuromoji_token={0} no es un token válido.
errors.invalid_kuromoji_segmentation=El número de divisiones de {0} no coincide con el número de divisiones de {1}.
errors.invalid_str_is_included = {1} no es válido en {0}.
errors.blank_password = Se requiere contraseña.

Así que las ponemos en su propio módulo `dependencies` (`app/dependencies.py`).

Ahora utilizaremos una dependencia simple para leer un header `X-Token` personalizado:

{* ../../docs_src/bigger_applications/app_an_py39/dependencies.py hl[3,6:8] title["app/dependencies.py"] *}

/// tip | Consejo

Estamos usando un header inventado para simplificar este ejemplo.

Então, as colocamos em seu próprio módulo de `dependencies` (`app/dependencies.py`).

Agora usaremos uma dependência simples para ler um cabeçalho `X-Token` personalizado:

{* ../../docs_src/bigger_applications/app_an_py39/dependencies.py hl[3,6:8] title["app/dependencies.py"] *}

/// tip | Dica

Estamos usando um cabeçalho inventado para simplificar este exemplo.

`kube-controller-manager`: The `LegacyServiceAccountTokenCleanUp` feature gate is now `beta` and enabled by default. When enabled, legacy auto-generated service account token secrets are auto-labeled with a `kubernetes.io/legacy-token-invalid-since` label if the credentials have not been used in the time specified by `--legacy-service-account-token-clean-up-period` (defaulting to one year), **and** are referenced from the `.secrets` list of a ServiceAccount object, **and**  are not referenced from pods. This...

errors.failed_to_download_mapping_file = Kan mappingbestand niet downloaden.
errors.failed_to_upload_mapping_file = Kan mappingbestand niet uploaden.
errors.invalid_kuromoji_token={0} is geen geldig token.
errors.invalid_kuromoji_segmentation=Het aantal segmentaties van {0} komt niet overeen met het aantal segmentaties van {1}.
errors.invalid_str_is_included = {1} is ongeldig in {0}.
errors.blank_password = Wachtwoord is vereist.