// Special case some of the weird HTTP Header names...
    ImmutableBiMap<String, String> specialCases =
        ImmutableBiMap.<String, String>builder()
            .put("CDN_LOOP", "CDN-Loop")
            .put("ETAG", "ETag")
            .put("SOURCE_MAP", "SourceMap")
            .put("SEC_CH_UA_WOW64", "Sec-CH-UA-WoW64")
            .put("SEC_WEBSOCKET_ACCEPT", "Sec-WebSocket-Accept")

    assertThat(invalidate.body.string()).isEqualTo("")
    assertThat(get(url).body.string()).isEqualTo("C")
  }

  @Test
  fun etag() {
    val conditionalRequest =
      assertConditionallyCached(
        MockResponse
          .Builder()
          .addHeader("ETag: v1")
          .build(),
      )
    assertThat(conditionalRequest.headers["If-None-Match"]).isEqualTo("v1")
  }

* `filename` - If set, this will be included in the response `Content-Disposition`.

File responses will include appropriate `Content-Length`, `Last-Modified` and `ETag` headers.

{* ../../docs_src/custom_response/tutorial009_py310.py hl[2,10] *}

You can also use the `response_class` parameter:

{* ../../docs_src/custom_response/tutorial009b_py310.py hl[2,8,10] *}

      Header("content-length", ""),
      Header("content-location", ""),
      Header("content-range", ""),
      Header("content-type", ""),
      Header("cookie", ""),
      Header("date", ""),
      Header("etag", ""),
      Header("expect", ""),
      Header("expires", ""),
      Header("from", ""),
      Header("host", ""),
      Header("if-match", ""),
      Header("if-modified-since", ""),

Go 1.23 changed
[`net/http.ServeContent`](/pkg/net/http#ServeContent),
[`net/http.ServeFile`](/pkg/net/http#ServeFile), and
[`net/http.ServeFS`](/pkg/net/http#ServeFS) to
remove Cache-Control, Content-Encoding, Etag, and Last-Modified headers
when serving an error. This behavior is controlled by
the [`httpservecontentkeepheaders` setting](/pkg/net/http#ServeContent).
Using `httpservecontentkeepheaders=1` restores the pre-Go 1.23 behavior.

* `filename` - Ayarlanırsa response içindeki `Content-Disposition`’a dahil edilir.

File response'ları uygun `Content-Length`, `Last-Modified` ve `ETag` header’larını içerir.

{* ../../docs_src/custom_response/tutorial009_py310.py hl[2,10] *}

`response_class` parametresini de kullanabilirsiniz:

{* ../../docs_src/custom_response/tutorial009b_py310.py hl[2,8,10] *}

* `filename` – Wenn gesetzt, wird das in der `Content-Disposition` der Response eingefügt.

Datei-Responses enthalten die entsprechenden `Content-Length`-, `Last-Modified`- und `ETag`-Header.

{* ../../docs_src/custom_response/tutorial009_py310.py hl[2,10] *}

Sie können auch den Parameter `response_class` verwenden:

{* ../../docs_src/custom_response/tutorial009b_py310.py hl[2,8,10] *}

* `filename` - Si se establece, se incluirá en el response `Content-Disposition`.

Los responses de archivos incluirán los headers apropiados `Content-Length`, `Last-Modified` y `ETag`.

{* ../../docs_src/custom_response/tutorial009_py310.py hl[2,10] *}

También puedes usar el parámetro `response_class`:

{* ../../docs_src/custom_response/tutorial009b_py310.py hl[2,8,10] *}

* `headers` - 딕셔너리 형식의 사용자 정의 헤더.
* `media_type` - 미디어 타입을 나타내는 문자열. 설정되지 않은 경우 파일 이름이나 경로를 사용하여 추론합니다.
* `filename` - 설정된 경우 응답의 `Content-Disposition`에 포함됩니다.

파일 응답에는 적절한 `Content-Length`, `Last-Modified`, 및 `ETag` 헤더가 포함됩니다.

{* ../../docs_src/custom_response/tutorial009_py310.py hl[2,10] *}

또한 `response_class` 매개변수를 사용할 수도 있습니다:

{* ../../docs_src/custom_response/tutorial009b_py310.py hl[2,8,10] *}

- `filename` - Si défini, sera inclus dans l'en-tête `Content-Disposition` de la réponse.

Les réponses de type fichier incluront les en-têtes appropriés `Content-Length`, `Last-Modified` et `ETag`.

{* ../../docs_src/custom_response/tutorial009_py310.py hl[2,10] *}

Vous pouvez aussi utiliser le paramètre `response_class` :

{* ../../docs_src/custom_response/tutorial009b_py310.py hl[2,8,10] *}