diff --git a/src/vendor/golang_org/x/net/internal/nettest/helper_stub.go b/src/vendor/golang_org/x/net/internal/nettest/helper_stub.go
index ea61b6f399..d729156de6 100644
--- a/src/vendor/golang_org/x/net/internal/nettest/helper_stub.go
+++ b/src/vendor/golang_org/x/net/internal/nettest/helper_stub.go
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build nacl plan9
+// +build js,wasm nacl plan9
 
 package nettest
 
diff --git a/src/vendor/golang_org/x/net/internal/nettest/stack.go b/src/vendor/golang_org/x/net/internal/nettest/stack.go
index 06f4e09ef8..46d2fccab5 100644
--- a/src/vendor/golang_org/x/net/internal/nettest/stack.go
+++ b/src/vendor/golang_org/x/net/internal/nettest/stack.go
@@ -64,7 +64,7 @@ func TestableNetwork(network string) bool {
 	switch network {
 	case "unix", "unixgram":
 		switch runtime.GOOS {
-		case "android", "nacl", "plan9", "windows":
+		case "android", "js", "nacl", "plan9", "windows":
 			return false
 		}
 		if runtime.GOOS == "darwin" && (runtime.GOARCH == "arm" || runtime.GOARCH == "arm64") {
@@ -72,7 +72,7 @@ func TestableNetwork(network string) bool {
 		}
 	case "unixpacket":
 		switch runtime.GOOS {
-		case "android", "darwin", "freebsd", "nacl", "plan9", "windows":
+		case "android", "darwin", "freebsd", "js", "nacl", "plan9", "windows":
 			return false
 		case "netbsd":
 			// It passes on amd64 at least. 386 fails (Issue 22927). arm is unknown.