},
        )
        .build()
    dns["san.com"] = Dns.SYSTEM.lookup(server.hostName).subList(0, 1)
    assert200Http2Response(execute(url), server.hostName)

    // Simulate a stale connection in the pool.
    connection.get()!!.socket().close()
    val sanUrl = url.newBuilder().host("san.com").build()
    assert200Http2Response(execute(sanUrl), "san.com")

everywhere. Otherwise the two cache instances will stomp on each other, corrupt the response cache, and possibly crash your program.

Response caching uses HTTP headers for all configuration. You can add request headers like `Cache-Control: max-stale=3600` and OkHttp's cache will honor them. Your webserver configures how long responses are cached with its own response headers, like `Cache-Control: max-age=9600`. There are cache headers to force a cached response, force a network response, or force...

1F6F9         ; valid                  ;      ; NV8    # 11.0 SKATEBOARD
1F6FA         ; valid                  ;      ; NV8    # 12.0 AUTO RICKSHAW
1F6FB..1F6FC  ; valid                  ;      ; NV8    # 13.0 PICKUP TRUCK..ROLLER SKATE
1F6FD..1F6FF  ; disallowed                             # NA   <reserved-1F6FD>..<reserved-1F6FF>
1F700..1F773  ; valid                  ;      ; NV8    # 6.0  ALCHEMICAL SYMBOL FOR QUINTESSENCE..ALCHEMICAL SYMBOL FOR HALF OUNCE