"Content-Encoding",
		"Content-Length",
		"Content-Type",
		"Content-Disposition",
		"Last-Modified",
		"Content-Language",
		"Cache-Control",
		"Retry-After",
		"X-Amz-Bucket-Region",
		"Expires",
		"X-Amz*",
		"X-Amz*",
		"*",
	}
	expectedMap.Set("Vary", "Origin")

	req, _ := http.NewRequest(http.MethodOptions, s.endPoint, nil)
	req.Header.Set("Origin", "http://foobar.com")

// active connections. Shutdown works by first closing all open
// listeners, then closing all idle connections, and then waiting
// indefinitely for connections to return to idle and then shut down.
// If the provided context expires before the shutdown is complete,
// Shutdown returns the context's error, otherwise it returns any
// error returned from closing the [Server]'s underlying Listener(s).
//

//
// The -x flag causes clean to print remove commands as it executes them.
//
// The -cache flag causes clean to remove the entire go build cache.
//
// The -testcache flag causes clean to expire all test results in the
// go build cache.
//
// The -modcache flag causes clean to remove the entire module
// download cache, including unpacked source code of versioned
// dependencies.
//

	eventLog.Printf("canceling")
	test.cancel(tr, req)
	test.cancel(tr, req) // used to panic on second call to Transport.Cancel

	if d, ok := t.Deadline(); ok {
		// When the test's deadline is about to expire, log the pending events for
		// better debugging.
		timeout := time.Until(d) * 19 / 20 // Allow 5% for cleanup.
		timer := time.AfterFunc(timeout, func() {

//
//go:linkname gopark
func gopark(unlockf func(*g, unsafe.Pointer) bool, lock unsafe.Pointer, reason waitReason, traceReason traceBlockReason, traceskip int) {
	if reason != waitReasonSleep {
		checkTimeouts() // timeouts may expire while two goroutines keep the scheduler busy
	}
	mp := acquirem()
	gp := mp.curg
	status := readgstatus(gp)
	if status != _Grunning && status != _Gscanrunning {
		throw("gopark: bad g status")
	}