assertThat(response.body.string()).isEqualTo("")
    server.takeRequest() // seed
    return server.takeRequest()
  }

  /**
   * For Last-Modified and Date headers, we should echo the date back in the exact format we were
   * served.
   */
  @Test
  fun retainServedDateFormat() {
    // Serve a response with a non-standard date format that OkHttp supports.