diff --git a/staging/src/k8s.io/apiserver/pkg/util/proxy/streamtranslator_test.go b/staging/src/k8s.io/apiserver/pkg/util/proxy/streamtranslator_test.go
index c3452202236..55ecbda0498 100644
--- a/staging/src/k8s.io/apiserver/pkg/util/proxy/streamtranslator_test.go
+++ b/staging/src/k8s.io/apiserver/pkg/util/proxy/streamtranslator_test.go
@@ -28,6 +28,7 @@ import (
 	mrand "math/rand"
 	"net/http"
 	"net/http/httptest"
+	"net/http/httputil"
 	"net/url"
 	"reflect"
 	"strings"
@@ -61,7 +62,7 @@ func TestStreamTranslator_LoopbackStdinToStdout(t *testing.T) {
 	t.Cleanup(metrics.ResetForTest)
 	// Create upstream fake SPDY server which copies STDIN back onto STDOUT stream.
 	spdyServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
-		ctx, err := createSPDYServerStreams(w, req, Options{
+		ctx, err := createSPDYServerStreams(t, w, req, Options{
 			Stdin:  true,
 			Stdout: true,
 		})
@@ -162,7 +163,7 @@ func TestStreamTranslator_LoopbackStdinToStderr(t *testing.T) {
 	t.Cleanup(metrics.ResetForTest)
 	// Create upstream fake SPDY server which copies STDIN back onto STDERR stream.
 	spdyServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
-		ctx, err := createSPDYServerStreams(w, req, Options{
+		ctx, err := createSPDYServerStreams(t, w, req, Options{
 			Stdin:  true,
 			Stderr: true,
 		})
@@ -267,7 +268,7 @@ func TestStreamTranslator_ErrorStream(t *testing.T) {
 	// Create upstream fake SPDY server, returning a non-zero exit code
 	// on error stream within the structured error.
 	spdyServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
-		ctx, err := createSPDYServerStreams(w, req, Options{
+		ctx, err := createSPDYServerStreams(t, w, req, Options{
 			Stdout: true,
 		})
 		if err != nil {
@@ -373,7 +374,7 @@ func TestStreamTranslator_MultipleReadChannels(t *testing.T) {
 	t.Cleanup(metrics.ResetForTest)
 	// Create upstream fake SPDY server which copies STDIN back onto STDOUT and STDERR stream.
 	spdyServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
-		ctx, err := createSPDYServerStreams(w, req, Options{
+		ctx, err := createSPDYServerStreams(t, w, req, Options{
 			Stdin:  true,
 			Stdout: true,
 			Stderr: true,
@@ -478,7 +479,7 @@ apiserver_stream_translator_requests_total{code="200"} 1
 func TestStreamTranslator_ThrottleReadChannels(t *testing.T) {
 	// Create upstream fake SPDY server which copies STDIN back onto STDOUT and STDERR stream.
 	spdyServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
-		ctx, err := createSPDYServerStreams(w, req, Options{
+		ctx, err := createSPDYServerStreams(t, w, req, Options{
 			Stdin:  true,
 			Stdout: true,
 			Stderr: true,
@@ -621,7 +622,7 @@ func TestStreamTranslator_TTYResizeChannel(t *testing.T) {
 	actualTerminalSizes := make([]remotecommand.TerminalSize, 0, numSizeQueue)
 	// Create upstream fake SPDY server which copies STDIN back onto STDERR stream.
 	spdyServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
-		ctx, err := createSPDYServerStreams(w, req, Options{
+		ctx, err := createSPDYServerStreams(t, w, req, Options{
 			Tty: true,
 		})
 		if err != nil {
@@ -871,9 +872,23 @@ type streamAndReply struct {
 // connection with remote command streams defined in passed options. Returns a streamContext
 // structure containing the Reader/Writer streams to communicate through the SDPY connection.
 // Returns an error if unable to upgrade the HTTP connection to a SPDY connection.
-func createSPDYServerStreams(w http.ResponseWriter, req *http.Request, opts Options) (*streamContext, error) {
+func createSPDYServerStreams(t *testing.T, w http.ResponseWriter, req *http.Request, opts Options) (*streamContext, error) {
 	_, err := httpstream.Handshake(req, w, []string{rcconstants.StreamProtocolV4Name})
 	if err != nil {
+		t.Log("------------------- [DEBUG] HANDSHAKE FAILED -------------------")
+		t.Logf("Method:        %s", req.Method)
+		t.Logf("URL:           %s", req.URL.String())
+		t.Logf("Proto:         %s", req.Proto)
+		t.Logf("Header Count:  %d", len(req.Header))
+		t.Logf("ContentLength: %d", req.ContentLength) // Should be zero for upgrade request
+		// Dump the request in its entirety.
+		dump, err := httputil.DumpRequest(req, true)
+		if err != nil {
+			t.Logf("DumpRequest failed: %v", err)
+		} else {
+			t.Logf("Full HTTP Request Dump:\n%s", dump)
+		}
+
 		return nil, err
 	}