assertThat(response4.message).isEqualTo("C-OK")
    server.takeRequest() // regular get
    return server.takeRequest() // conditional get
  }

  @Test
  fun immutableIsCached() {
    server.enqueue(
      MockResponse
        .Builder()
        .addHeader("Cache-Control", "immutable, max-age=10")
        .body("A")
        .build(),
    )
    server.enqueue(