"Accept-Charset",
          ),
        body = "A",
      ),
    )
    client =
      client.newBuilder()
        .cache(cache)
        .build()

    // Store a response in the cache.
    val url = server.url("/")
    val request1SentAt = System.currentTimeMillis()
    executeSynchronously("/", "Accept-Language", "fr-CA", "Accept-Charset", "UTF-8")
      .assertCode(200)