olla
olen
olet
on
olemme
olette
ovat
ole
oli
olisi
olisit
olisin
olisimme
olisitte
olisivat
olit
olin
olimme
olitte
olivat
ollut
olleet
en
et
ei
emme
ette
eivät
minä
minun
minut
minua
minussa
minusta
minuun
minulla
minulta

        },
        "finnish_stop": {
          "type":       "stop",

        },
        "finnish_stop": {
          "type":       "stop",

<div style="text-align: right; margin-right: 10%;">Piero Molino, Yaroslav Dudin, and Sai Sumanth Miryala - <strong>Uber</strong> <a href="https://eng.uber.com/ludwig-v0-2/" target="_blank"><small>(ref)</small></a></div>

---

# CORS (Cross-Origin Resource Sharing)

<a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS" class="external-link" target="_blank">CORS or "Cross-Origin Resource Sharing"</a> refers to the situations when a frontend running in a browser has JavaScript code that communicates with a backend, and the backend is in a different "origin" than the frontend.

## Origin

	referrerPolicy := env.Get(EnvBrowserReferrerPolicy, kvs.GetWithDefault(browserReferrerPolicy, DefaultKVS))
	switch referrerPolicy {
	case "no-referrer", "no-referrer-when-downgrade", "origin", "origin-when-cross-origin", "same-origin", "strict-origin", "strict-origin-when-cross-origin", "unsafe-url":
		cfg.ReferrerPolicy = referrerPolicy
	default:
		return cfg, fmt.Errorf("invalid value %v for %s", referrerPolicy, browserReferrerPolicy)
	}

    headers = {
        "Origin": "https://localhost.tiangolo.com",
        "Access-Control-Request-Method": "GET",
        "Access-Control-Request-Headers": "X-Example",
    }
    response = client.options("/", headers=headers)
    assert response.status_code == 200, response.text
    assert response.text == "OK"
    assert (
        response.headers["access-control-allow-origin"]
        == "https://localhost.tiangolo.com"

/// tip | "İpucu"

Mümkün mertebe 'Annotated' sınıfını kullanmaya çalışın.

///

```Python hl_lines="1"
{!> ../../docs_src/cookie_params/tutorial001_py310.py!}
```

////

//// tab | Python 3.8+ non-Annotated

/// tip | "İpucu"

Mümkün mertebe 'Annotated' sınıfını kullanmaya çalışın.

///

```Python hl_lines="3"
{!> ../../docs_src/cookie_params/tutorial001.py!}
```

    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";
  }

    public void add(final String origin, final CorsHandler handler) {
        if (logger.isDebugEnabled()) {
            logger.debug("Loaded {}", origin);
        }
        handerMap.put(origin, handler);
    }

    public CorsHandler get(final String origin) {
        final CorsHandler handler = handerMap.get(origin);
        if (handler != null) {
            return handler;
        }