if g, e := <-writeErrors, ErrHandlerTimeout; g != e {
		t.Errorf("expected Write error of %v; got %v", e, g)
	}
}

// See issues 8209 and 8414.
func TestTimeoutHandlerRace(t *testing.T) { run(t, testTimeoutHandlerRace) }
func testTimeoutHandlerRace(t *testing.T, mode testMode) {
	delayHi := HandlerFunc(func(w ResponseWriter, r *Request) {
		ms, _ := strconv.Atoi(r.URL.Path[1:])
		if ms == 0 {
			ms = 1
		}