diff --git a/common/httputilz/day3_w09_xclient_test.go b/common/httputilz/day3_w09_xclient_test.go
new file mode 100644
index 000000000..5893383ef
--- /dev/null
+++ b/common/httputilz/day3_w09_xclient_test.go
@@ -0,0 +1,15 @@
+package httputilz
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestParseRequestWithCustomXClientHeaders(t *testing.T) {
+	raw := "GET /metrics HTTP/1.1\r\nHost: example.com\r\nX-Client-ID: client-node-091\r\nX-Client-Trace: 88291a0f\r\n\r\n"
+	req, err := ParseRequest(raw, false)
+	require.Nil(t, err)
+	require.NotNil(t, req)
+	require.Equal(t, "/metrics", req.URL.RequestURI())
+}