# CORS (Cross-Origin Resource Sharing) { #cors-cross-origin-resource-sharing }

[CORS oder <abbr title="Ressourcenfreigabe zwischen Ursprüngen">„Cross-Origin Resource Sharing“</abbr>](https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS) bezieht sich auf Situationen, in denen ein Frontend, das in einem Browser läuft, JavaScript-Code enthält, der mit einem Backend kommuniziert, und das Backend sich in einem anderen „Origin“ als das Frontend befindet.

## Origin { #origin }

    public static final String SAME_ORIGIN = "same-origin";
    public static final String ORIGIN = "origin";
    public static final String STRICT_ORIGIN = "strict-origin";
    public static final String ORIGIN_WHEN_CROSS_ORIGIN = "origin-when-cross-origin";
    public static final String STRICT_ORIGIN_WHEN_CROSS_ORIGIN = "strict-origin-when-cross-origin";
    public static final String UNSAFE_URL = "unsafe-url";
  }

    }

    // Test with valid Origin and CorsHandler found (non-OPTIONS request)
    @Test
    public void test_doFilter_withCorsHandler_nonOptions() throws IOException, ServletException {
        String origin = "http://example.com";
        mockRequest.setHeader("Origin", origin);
        mockRequest.setMethod("GET");
        TestCorsHandler handler = new TestCorsHandler();
        corsHandlerFactory.setHandler(handler);

    }

    @Test
    public void test_add_and_get_specificOrigin() {
        // Setup
        String origin = "https://example.com";
        TestCorsHandler handler = new TestCorsHandler("example-handler");

        // Execute
        corsHandlerFactory.add(origin, handler);
        CorsHandler result = corsHandlerFactory.get(origin);

        // Verify
        assertNotNull(result);
        assertEquals(handler, result);

    this.supportsFastOffset = supportsFastOffset;
  }

  /**
   * Returns, conceptually, "origin + distance", or equivalently, the result of calling {@link
   * #next} on {@code origin} {@code distance} times.
   */
  C offset(C origin, long distance) {
    C current = origin;
    checkNonnegative(distance, "distance");
    for (long i = 0; i < distance; i++) {
      current = next(current);

# CORS (Обмін ресурсами між різними джерелами) { #cors-cross-origin-resource-sharing }

[CORS або «Cross-Origin Resource Sharing»](https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS) є ситуація, коли фронтенд, що працює в браузері, містить JavaScript-код, який взаємодіє з бекендом, розташованим в іншому «джерелі» (origin).

## Джерело (Origin) { #origin }

* auto-completion: preenchimento automático
* bug: bug
* context manager: gerenciador de contexto
* cross domain: cross domain (do not translate to "domínio cruzado")
* cross origin: cross origin (do not translate to "origem cruzada")
* Cross-Origin Resource Sharing: Cross-Origin Resource Sharing (do not translate to "Compartilhamento de Recursos de Origem Cruzada")
* Deep Learning: Deep Learning (do not translate to "Aprendizado Profundo")

    /**
     * Processes the CORS request by setting appropriate headers.
     *
     * @param origin the origin of the request
     * @param request the servlet request
     * @param response the servlet response
     */
    public abstract void process(String origin, ServletRequest request, ServletResponse response);

# CORS (Cross-Origin Resource Sharing) { #cors-cross-origin-resource-sharing }

[CORS или "Cross-Origin Resource Sharing"](https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS) относится к ситуациям, при которых запущенный в браузере фронтенд содержит JavaScript-код, который взаимодействует с бэкендом, находящимся на другом "источнике" ("origin").

## Источник { #origin }

```
curl http://minio1:9001/minio/health/cluster
HTTP/1.1 503 Service Unavailable
Accept-Ranges: bytes
Content-Length: 0
Server: MinIO
Vary: Origin
X-Amz-Bucket-Region: us-east-1
X-Minio-Write-Quorum: 3
X-Amz-Request-Id: 16239D6AB80EBECF
X-Xss-Protection: 1; mode=block
Date: Tue, 21 Jul 2020 00:36:14 GMT
```

### Cluster-readable probe