diff --git a/client/ssh/server/command_execution_js.go b/client/ssh/server/command_execution_js.go
new file mode 100644
index 000000000..021182179
--- /dev/null
+++ b/client/ssh/server/command_execution_js.go
@@ -0,0 +1,36 @@
+//go:build js
+
+package server
+
+import (
+	"errors"
+	"os/exec"
+	"os/user"
+
+	"github.com/gliderlabs/ssh"
+)
+
+var errNotSupported = errors.New("SSH server command execution not supported on WASM/JS platform")
+
+// createSuCommand is not supported on JS/WASM
+func (s *Server) createSuCommand(_ ssh.Session, _ *user.User, _ bool) (*exec.Cmd, error) {
+	return nil, errNotSupported
+}
+
+// createExecutorCommand is not supported on JS/WASM
+func (s *Server) createExecutorCommand(_ ssh.Session, _ *user.User, _ bool) (*exec.Cmd, error) {
+	return nil, errNotSupported
+}
+
+// prepareCommandEnv is not supported on JS/WASM
+func (s *Server) prepareCommandEnv(_ *user.User, _ ssh.Session) []string {
+	return nil
+}
+
+// setupProcessGroup is not supported on JS/WASM
+func (s *Server) setupProcessGroup(_ *exec.Cmd) {
+}
+
+// killProcessGroup is not supported on JS/WASM
+func (s *Server) killProcessGroup(_ *exec.Cmd) {
+}
diff --git a/client/ssh/server/session_handlers_js.go b/client/ssh/server/session_handlers_js.go
new file mode 100644
index 000000000..bca97ded5
--- /dev/null
+++ b/client/ssh/server/session_handlers_js.go
@@ -0,0 +1,22 @@
+//go:build js
+
+package server
+
+import (
+	"fmt"
+
+	"github.com/gliderlabs/ssh"
+	log "github.com/sirupsen/logrus"
+)
+
+// handlePty is not supported on JS/WASM
+func (s *Server) handlePty(logger *log.Entry, session ssh.Session, _ PrivilegeCheckResult, _ ssh.Pty, _ <-chan ssh.Window) bool {
+	errorMsg := "PTY sessions are not supported on WASM/JS platform\n"
+	if _, err := fmt.Fprint(session.Stderr(), errorMsg); err != nil {
+		logger.Debugf(errWriteSession, err)
+	}
+	if err := session.Exit(1); err != nil {
+		logger.Debugf(errExitSession, err)
+	}
+	return false
+}
diff --git a/client/ssh/server/sftp_js.go b/client/ssh/server/sftp_js.go
new file mode 100644
index 000000000..3b27aeff4
--- /dev/null
+++ b/client/ssh/server/sftp_js.go
@@ -0,0 +1,12 @@
+//go:build js
+
+package server
+
+import (
+	"os/user"
+)
+
+// parseUserCredentials is not supported on JS/WASM
+func (s *Server) parseUserCredentials(_ *user.User) (uint32, uint32, []uint32, error) {
+	return 0, 0, nil, errNotSupported
+}
diff --git a/client/ssh/server/user_utils_js.go b/client/ssh/server/user_utils_js.go
new file mode 100644
index 000000000..163b24c6c
--- /dev/null
+++ b/client/ssh/server/user_utils_js.go
@@ -0,0 +1,8 @@
+//go:build js
+
+package server
+
+// validateUsername is not supported on JS/WASM
+func validateUsername(_ string) error {
+	return errNotSupported
+}
diff --git a/client/ssh/server/userswitching_js.go b/client/ssh/server/userswitching_js.go
new file mode 100644
index 000000000..333c19259
--- /dev/null
+++ b/client/ssh/server/userswitching_js.go
@@ -0,0 +1,8 @@
+//go:build js
+
+package server
+
+// enableUserSwitching is not supported on JS/WASM
+func enableUserSwitching() error {
+	return errNotSupported
+}