}
		}()
	}
	wg.Wait()
}

// See issues 8209 and 8414.
// Both issues involved panics in the implementation of TimeoutHandler.
func TestTimeoutHandlerRaceHeader(t *testing.T) { run(t, testTimeoutHandlerRaceHeader) }
func testTimeoutHandlerRaceHeader(t *testing.T, mode testMode) {
	delay204 := HandlerFunc(func(w ResponseWriter, r *Request) {
		w.WriteHeader(204)
	})