}
      val file = File(baseDirectory.toString() + path)
      if (file.isDirectory) {
        serveDirectory(stream, file.listFiles()!!)
      } else if (file.exists()) {
        serveFile(stream, file)
      } else {
        send404(stream, path)
      }
    } catch (e: IOException) {
      Platform.get().log("Failure serving Http2Stream: " + e.message, Platform.INFO, null)
    }
  }

defaults to `x509keypairleaf=1`. Previous versions default to
`x509keypairleaf=0`.

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

pkg net/http, func RedirectHandler(string, int) Handler
pkg net/http, func Serve(net.Listener, Handler) error
pkg net/http, func ServeContent(ResponseWriter, *Request, string, time.Time, io.ReadSeeker)
pkg net/http, func ServeFile(ResponseWriter, *Request, string)
pkg net/http, func SetCookie(ResponseWriter, *Cookie)
pkg net/http, func StatusText(int) string
pkg net/http, func StripPrefix(string, Handler) Handler